Log in

Relevant bibliographies by topics / Seashore biology / Journal articles

Journal articles on the topic 'Seashore biology'

To see the other types of publications on this topic, follow the link: Seashore biology.

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Seashore biology.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Zhang, Yong, Jun Liu, Jingjin Yu, Huangwei Zhang, and Zhimin Yang. "Relationship between the Phenylpropanoid Pathway and Dwarfism of Paspalum seashore Based on RNA-Seq and iTRAQ." International Journal of Molecular Sciences 22, no. 17 (September 3, 2021): 9568. http://dx.doi.org/10.3390/ijms22179568.

Full text

Abstract:

Seashore paspalum is a major warm-season turfgrass requiring frequent mowing. The use of dwarf cultivars with slow growth is a promising method to decrease mowing frequency. The present study was conducted to provide an in-depth understanding of the molecular mechanism of T51 dwarfing in the phenylpropane pathway and to screen the key genes related to dwarfing. For this purpose, we obtained transcriptomic information based on RNA-Seq and proteomic information based on iTRAQ for the dwarf mutant T51 of seashore paspalum. The combined results of transcriptomic and proteomic analysis were used to identify the differential expression pattern of genes at the translational and transcriptional levels. A total of 8311 DEGs were detected at the transcription level, of which 2540 were upregulated and 5771 were downregulated. Based on the transcripts, 2910 proteins were identified using iTRAQ, of which 392 (155 upregulated and 237 downregulated) were DEPs. The phenylpropane pathway was found to be significantly enriched at both the transcriptional and translational levels. Combined with the decrease in lignin content and the increase in flavonoid content in T51, we found that the dwarf phenotype of T51 is closely related to the abnormal synthesis of lignin and flavonoids in the phenylpropane pathway. CCR and HCT may be the key genes for T51 dwarf. This study provides the basis for further study on the dwarfing mechanism of seashore paspalum. The screening of key genes lays a foundation for further studies on the molecular mechanism of seashore paspalum dwarfing.

APA, Harvard, Vancouver, ISO, and other styles

2

Adhikari, Srikar, Wesley Zeger, Michael Wadman, Richard Walker, and Carol Lomneth. "Assessment of a Human Cadaver Model for Training Emergency Medicine Residents in the Ultrasound Diagnosis of Pneumothorax." BioMed Research International 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/724050.

Full text

Abstract:

Objectives. To assess a human cadaver model for training emergency medicine residents in the ultrasound diagnosis of pneumothorax.Methods. Single-blinded observational study using a human cadaveric model at an academic medical center. Three lightly embalmed cadavers were used to create three “normal lungs” and three lungs modeling a “pneumothorax.” The residents were blinded to the side and number of pneumothoraces, as well as to each other’s findings. Each resident performed an ultrasound examination on all six lung models during ventilation of cadavers. They were evaluated on their ability to identify the presence or absence of the sliding-lung sign and seashore sign.Results. A total of 84 ultrasound examinations (42-“normal lung,” 42-“pneumothorax”) were performed. A sliding-lung sign was accurately identified in 39 scans, and the seashore sign was accurately identified in 34 scans. The sensitivity and specificity for the sliding-lung sign were 93% (95% CI, 85–100%) and 90% (95% CI, 81–99%), respectively. The sensitivity and specificity for the seashore sign were 80% (95% CI, 68–92%) and 83% (95% CI, 72–94%), respectively.Conclusions. Lightly embalmed human cadavers may provide an excellent model for mimicking the sonographic appearance of pneumothorax.

APA, Harvard, Vancouver, ISO, and other styles

3

Sigurbjörnsdóttir, Margrét Auður, Starri Heiðmarsson, Anna Rut Jónsdóttir, and Oddur Vilhelmsson. "Novel bacteria associated with Arctic seashore lichens have potential roles in nutrient scavenging." Canadian Journal of Microbiology 60, no. 5 (May 2014): 307–17. http://dx.doi.org/10.1139/cjm-2013-0888.

Full text

Abstract:

While generally described as a bipartite mutualistic association between fungi and algae or cyanobacteria, lichens also host diverse and heretofore little explored communities of nonphototrophic endolichenic bacteria. The composition and possible roles of these bacterial communities in the lichen symbiotic association constitute an emerging field of research. Saxicolous (rock-dwelling) seashore lichens present an unusual environment, characterized by rapid fluctuations in temperature, salinity, exposure to solar radiation, etc. The present study focuses on the bacterial biota associated with 4 species of crustose, halophilic, saxicolous seashore lichens found in northern Iceland. A denaturing gradient gel electrophoresis based characterization of the composition of the lichen-associated microbiotas indicated that they are markedly lichen-species-specific and clearly distinguishable from the environmental microbiota represented by control sampling. A collection of bacterial strains was investigated and partially identified by 16S rDNA sequencing. The strains were found to belong to 7 classes: Alphaproteobacteria, Bacilli, Actinobacteria, Flavobacteria, Cytophagia, Sphingobacteria, and Gammaproteobacteria. Several isolates display only a modest level of similarity to their nearest relatives found in GenBank, suggesting that they comprise previously undescribed taxa. Selected strains were tested for inorganic phosphate solubilization and biodegradation of several biopolymers, such as barley β-glucan, xylan, chitosan, and lignin. The results support a nutrient-scavenging role of the associate microbiota in the seashore lichen symbiotic association.

APA, Harvard, Vancouver, ISO, and other styles

4

Jeon, Mi-Jeong, and Kee-Jeong Ahn. "Revision of the seashore genus Salinamexus (Coleoptera: Staphylinidae: Aleocharinae) with a description of Salinamexus koreanus sp. nov. from Korea." Canadian Entomologist 139, no. 2 (April 2007): 189–94. http://dx.doi.org/10.4039/n06-023.

Full text

Abstract:

AbstractThe seashore aleocharine genus Salinamexus Moore and Legner is revised. Three species are recognized, one of which is described as new (Salinamexus koreanussp. nov.). The genus Salinamexus and the species S. browni Moore and Legner and S. reticulatus (Moore and Legner) are redescribed. A key and illustrations of diagnostic features are provided.

APA, Harvard, Vancouver, ISO, and other styles

5

HLAVÁČ, PETER, JIŘÍ SKUHROVEC, and JAN PELIKÁN. "A new, peculiar genus of Cossoninae (Coleoptera, Curculionidae) from Oman with description of a new species, larva and notes on biology." Zootaxa 4768, no. 1 (April 30, 2020): 129–42. http://dx.doi.org/10.11646/zootaxa.4768.1.8.

Full text

Abstract:

A new genus and species of the subfamily Cossoninae, Omanocossonus sabulosus gen. et sp. nov. is described from Oman. All specimens including larvae were found on sand dunes on the seashore in roots of Calotropis procera (Aiton) W.T. Aiton. The crucial features, including male and female terminalia, are illustrated, and the taxonomic position of the new genus within Cossoninae is briefly discussed. The generic status of Lindbergius Roudier, 1957 is resurrected. The mature larva of the new species is described, larval morphology is discussed and the current state of knowledge about immature stages of Cossoninae is summarized.

APA, Harvard, Vancouver, ISO, and other styles

6

Liu, Zhao-Wei, Robert L. Jarret, Ronny R. Duncan, and Stephen Kresovich. "Genetic relationships and variation among ecotypes of seashore paspalum (Paspalum vaginatum) determined by random amplified polymorphic DNA markers." Genome 37, no. 6 (December 1, 1994): 1011–17. http://dx.doi.org/10.1139/g94-143.

Full text

Abstract:

Random amplified polymorphic DNA (RAPD) markers were used to assess genetic relationships and variation among ecotypes of the turfgrass seashore paspalum (Paspalum vaginatum Swartz). Vegetative tissues or seeds of 46 seashore paspalum ecotypes were obtained from various locations in the United States, Argentina, and South Africa. Leaf DNA extracts were screened for RAPD markers using 34 10-mer random primers. A total of 195 reproducible RAPD fragments were observed, with an average of six fragments per primer. One hundred and sixty-nine fragments (87% of the total observed) were polymorphic, among which 27 fragments (16%) were present in three or less ecotypes, indicating the occurrence of a high level of genetic variation among the examined accessions of this species. Cluster analysis (UPGMA) and principal coordinates analysis were performed on the RAPD data set. The results illustrate genetic relationships among the 46 ecotypes, and between ecotypes and their geographical origins. Ecotypes from southern Africa could be differentiated from the U.S. and most of the Argentinean ecotypes. With a few exceptions, ecotypes collected from Argentina, Hawaii, Florida, and Texas were separated into distinct clusters.Key words: RAPDs, polymerase chain reaction, genetic diversity, phenetic analysis.

APA, Harvard, Vancouver, ISO, and other styles

7

Nuessly, G. S., R. T. Nagata, J. D. Burd, M. G. Hentz, A. S. Carroll, and S. E. Halbert. "Biology and Biotype Determination of Greenbug,Schizaphis graminum(Hemiptera: Aphididae), on Seashore Paspalum Turfgrass (Paspalum vaginatum)." Environmental Entomology 37, no. 2 (April 1, 2008): 586–91. http://dx.doi.org/10.1093/ee/37.2.586.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Richards, M. H. "Nesting biology and social organization of Halictus sexcinctus (Fabricius) in southern Greece." Canadian Journal of Zoology 79, no. 12 (December 1, 2001): 2210–20. http://dx.doi.org/10.1139/z01-184.

Full text

Abstract:

Halictus sexcinctus is a large halictine bee species widely distributed across central Europe and into the Middle East. Although its behaviour had not previously been studied in detail, it is known to exhibit solitary behaviour in central Europe. An aggregation nesting beside the seashore at Pyla-Daimonia, Demos Molai, in the southeastern Peloponnesos, Greece, was studied during the summers of 1997 and 1998. In southern Greece, H. sexcinctus exhibits weakly eusocial colonies, based on a partially bivoltine colony cycle, so across its range it is socially polymorphic. Weak eusociality in this Mediterranean population is characterized by haplometrotic nest-founding, a relatively high degree of queenworker size dimorphism, high rates of worker mating and ovarian development, relatively short queen life-spans, and relatively low second-brood productivity. Overall, the sex ratio of the first brood is highly female-biased, while that of the second brood is variable, the proportions of males and females varying significantly in the 2 years. An unusual characteristic of nest foundresses in this population is that some are un-inseminated and produce all-male first broods rather than workers.

APA, Harvard, Vancouver, ISO, and other styles

9

Park, Sooyeon, Mi-Hwa Lee, and Jung-Hoon Yoon. "Oceanicola litoreus sp. nov., an alphaproteobacterium isolated from the seashore sediment." Antonie van Leeuwenhoek 103, no. 4 (December 28, 2012): 859–66. http://dx.doi.org/10.1007/s10482-012-9867-z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Kurilenko, Valeriya V., Lyudmila A. Romanenko, Nadezhda Y. Chernysheva, Peter V. Velansky, Liudmila A. Tekutyeva, Marina P. Isaeva, and Valery V. Mikhailov. "Thalassobius aquimarinus sp. nov., isolated from the Sea of Japan seashore." Archives of Microbiology 203, no. 6 (April 8, 2021): 3201–7. http://dx.doi.org/10.1007/s00203-021-02285-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Park, Sooyeon, and Jung-Hoon Yoon. "Ruegeria arenilitoris sp. nov., isolated from the seashore sand around a seaweed farm." Antonie van Leeuwenhoek 102, no. 4 (June 6, 2012): 581–89. http://dx.doi.org/10.1007/s10482-012-9753-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Karamendin, Kobey, Aidyn Kydyrmanov, Yermukhammet Kasymbekov, Saule Asanova, Klara Daulbayeva, Aigerim Seidalina, Elizaveta Khan, et al. "Novel avian paramyxovirus isolated from gulls in Caspian seashore in Kazakhstan." PLOS ONE 12, no. 12 (December 28, 2017): e0190339. http://dx.doi.org/10.1371/journal.pone.0190339.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Elmore, W. C., M. D. Gooch, and C. M. Stiles. "First Report of Gaeumannomyces graminis var. graminis on Seashore Paspalum in the United States." Plant Disease 86, no. 12 (December 2002): 1405. http://dx.doi.org/10.1094/pdis.2002.86.12.1405b.

Full text

Abstract:

Gaeumannomyces graminis var. graminis is an ectotrophic, root-infecting fungus found on some warm-season turfgrass species (1). A sample of seashore paspalum (Paspalum vaginatum) exhibiting rotted roots and stolons was taken from dying patches of turf in a home lawn in Hernando County, FL, and submitted to the Florida Extension Plant Disease Clinic, Gainesville, in October 2001. The lawn had been established within the previous year. Strongly lobed hyphopodia typical of G. graminis var. graminis (3,4) were present on diseased roots and stolons, and no other fungal plant pathogens were detected in the sample. Diseased roots and stolons with lobed hyphopodia were surface-sterilized and placed on one-quarter-strength potato dextrose agar (PDA) amended with rifampicin and streptomycin. One isolate produced structures characteristic of G. graminis var. graminis (3,4), including dark, strongly lobed hyphopodia, and perithecia and ascospores in PDA after incubation. The isolate (PDC 2965) was grown on a sterile ryegrass seed substrate at 25°C for 4 weeks to produce inoculum (2). The isolate was used to inoculate pots of ‘Sea Isle 1’ seashore paspalum grown in sterile soil from sprigs. An inoculum layer, 1 to 2 cm deep, was placed 2 to 4 cm below each sprig and covered with an overlay of sterile soil prior to sprigging (2). Following 4 weeks of plant growth in a greenhouse, dark, necrotic lesions appeared on leaf bases. Very dark lesions developed on roots, and brown runner hyphae and strongly lobed hyphopodia were observed on root and shoot tissues. Selected pieces of symptomatic root and shoot tissue were surface-sterilized and placed on PDA. One week later, dark mycelia and deeply lobed hyphopodia were observed growing from roots and shoots on the PDA. After 1 month, black, flask-shaped perithecia, 156 to 234 μm in body width, developed in cultures. Hyaline, filiform, septate ascospores ranged from 75 to 100 μm (mean = 89 μm; n = 250) long and were approximately 2.5 μm wide. Hyphopodia, perithecia, and ascospores were characteristic of G. graminis var. graminis (3,4). To our knowledge, this is the first report of take-all root rot disease due to G. graminis var. graminis on seashore paspalum in the United States. References: (1) L. E. Datnoff et al. Plant Dis. 81:1127, 1997. (2) M. L. Elliott. Plant Dis. 79:699, 1995. (3) M. L. Elliott and P. J. Landschoot. Plant Dis. 75:238, 1991. (4) P. J. Landschoot. Taxonomy and biology of ectotrophic root-infecting fungi associated with patch diseases of turfgrasses. Pages 41–71 in: Turfgrass Patch Diseases. B. B. Clarke and A. B. Gould, eds. American Phytopathological Society, St. Paul, MN, 1997.

APA, Harvard, Vancouver, ISO, and other styles

14

Park, Sooyeon, Chul-Hyung Kang, and Jung-Hoon Yoon. "Nonlabens arenilitoris sp. nov., a member of the family Flavobacteriaceae isolated from seashore sand." Antonie van Leeuwenhoek 103, no. 5 (February 20, 2013): 1125–32. http://dx.doi.org/10.1007/s10482-013-9893-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Nuessly, G. S., R. T. Nagata, J. D. Burd, M. G. Hentz, A. S. Carroll, and S. E. Halbert. "Biology and Biotype Determination of Greenbug, Schizaphis graminum (Hemiptera: Aphididae), on Seashore Paspalum Turfgrass (Paspalum vaginatum)." Environmental Entomology 37, no. 2 (April 1, 2008): 586–91. http://dx.doi.org/10.1603/0046-225x(2008)37[586:babdog]2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Kim, Byung-Chun, Mi Na Kim, Kang Hyun Lee, Hyun Soon Kim, Sung Ran Min, and Kee-Sun Shin. "Gilvimarinus agarilyticus sp. nov., a new agar-degrading bacterium isolated from the seashore of Jeju Island." Antonie van Leeuwenhoek 100, no. 1 (February 22, 2011): 67–73. http://dx.doi.org/10.1007/s10482-011-9565-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

MASUDA, Toshiya, Kumiko IRITANI, Shigetomo YONEMORI, Yasuo OYAMA, and Yoshio TAKEDA. "Isolation and Antioxidant Activity of Galloyl Flavonol Glycosides from the Seashore Plant, Pemphis acidula." Bioscience, Biotechnology, and Biochemistry 65, no. 6 (January 2001): 1302–9. http://dx.doi.org/10.1271/bbb.65.1302.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Hällfors, Maria, Susanna Lehvävirta, Tone Aandahl, Iida-Maria Lehtimäki, Lars Ola Nilsson, Anna Ruotsalainen, Leif E. Schulman, and Marko T. Hyvärinen. "Translocation of an arctic seashore plant reveals signs of maladaptation to altered climatic conditions." PeerJ 8 (November 20, 2020): e10357. http://dx.doi.org/10.7717/peerj.10357.

Full text

Abstract:

Ongoing anthropogenic climate change alters the local climatic conditions to which species may be adapted. Information on species’ climatic requirements and their intraspecific variation is necessary for predicting the effects of climate change on biodiversity. We used a climatic gradient to test whether populations of two allopatric varieties of an arctic seashore herb (Primula nutans ssp. finmarchica) show adaptation to their local climates and how a future warmer climate may affect them. Our experimental set-up combined a reciprocal translocation within the distribution range of the species with an experiment testing the performance of the sampled populations in warmer climatic conditions south of their range. We monitored survival, size, and flowering over four growing seasons as measures of performance and, thus, proxies of fitness. We found that both varieties performed better in experimental gardens towards the north. Interestingly, highest up in the north, the southern variety outperformed the northern one. Supported by weather data, this suggests that the climatic optima of both varieties have moved at least partly outside their current range. Further warming would make the current environments of both varieties even less suitable. We conclude that Primula nutans ssp. finmarchica is already suffering from adaptational lag due to climate change, and that further warming may increase this maladaptation, especially for the northern variety. The study also highlights that it is not sufficient to run only reciprocal translocation experiments. Climate change is already shifting the optimum conditions for many species and adaptation needs also to be tested outside the current range of the focal taxon in order to include both historic conditions and future conditions.

APA, Harvard, Vancouver, ISO, and other styles

19

Sutthinon, Pornsawan, Lacey Samuels, and Upatham Meesawat. "Pollen development in male sterile mangosteen (Garcinia mangostana L.) and male fertile seashore mangosteen (Garcinia celebica L.)." Protoplasma 256, no. 6 (June 14, 2019): 1545–56. http://dx.doi.org/10.1007/s00709-019-01397-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Park, Sooyeon, Yong-Taek Jung, Jung-Sook Lee, Kenu-Chul Lee, and Jung-Hoon Yoon. "Sabulilitoribacter multivorans gen. nov., sp. nov., a polysaccharide-degrading bacterium of the family Flavobacteriaceae isolated from seashore sand." Antonie van Leeuwenhoek 104, no. 6 (August 29, 2013): 973–81. http://dx.doi.org/10.1007/s10482-013-0016-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Iashchenko, Varvara. "Imaginary children: Emotional landscapes of involuntary childlessness ‐ personal reflections, sketching, diary and picture book." Journal of Illustration 7, no. 1 (August 1, 2020): 87–108. http://dx.doi.org/10.1386/jill_00026_1.

Full text

Abstract:

The act of drawing is still an underestimated, powerful and simple means of expression for adults. It represents an odd, unconventional and hence exceptional channel to self-awareness. This article is a phenomenological study of the author’s path from sketching to an emerging visual narrative about a prolonged period of unsuccessful attempts at conceiving a child. The emotional states that arose and the transitions that occurred during this period are discussed through the prism of matrescence, a transitional period to motherhood. It starts with a conscious decision to have a child. Through the biology and by means of drawing and illustration, the author explores the inner workings of the mind, decodes visual metaphors and symbols, and explores emotional and menstrual cycles of conceiving and losing, searching for lost connections to the body and processes within. Motives of walking, going through and cycling recur in the sketches and drawings. The cycling also appears through the metaphor of tides on the seashore. The fjord ‐ the sea as the origin of life in a biological sense ‐ becomes a place for emotional transformation. In this article, emotional landscapes hold a special place as a helpful tool for working with emotions and developing the story. The initial sketches are examined along with the text of the diary. The phenomenon of disconnection is discussed in a social context to reveal how it is shown in the illustrations. Finally, the egg becomes a strong visual trigger and a link between biology and art, and a character in the narrative.

APA, Harvard, Vancouver, ISO, and other styles

22

MASUDA, Toshiya, Daiki YAMASHITA, Yoshio TAKEDA, and Shigetomo YONEMORI. "Screening for Tyrosinase Inhibitors among Extracts of Seashore Plants and Identification of Potent Inhibitors fromGarcinia subelliptica." Bioscience, Biotechnology, and Biochemistry 69, no. 1 (January 2005): 197–201. http://dx.doi.org/10.1271/bbb.69.197.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Hastuti, Utami Sri, Kristin Sangur, and Henny Nurul Khasanah. "BIODIVERSITY AND ENZYME ACTIVITY OF INDIGENOUS CELLULOLYTIC AND AMYLOLYTIC BACTERIAS IN DECAYED MANGROVE STEM WASTE PRODUCT AT WAAI SEASHORE, AMBON ISLAND." KnE Life Sciences 2, no. 1 (September 20, 2015): 433. http://dx.doi.org/10.18502/kls.v2i1.188.

Full text

Abstract:

<p>Mangrove (Sonneratia spp.) could be found at Waai seashore, Ambon Island. The remainder of the mangrove stem will be decayed and become the waste product. Some indigenous bacteria species that live in the decayed mangrove stem waste product have cellulolytic and amylolytic characters. The objectives of this research were to: 1) identify and determine the cellulolytic bacteria species; 2) identify and determine the amylolytic bacteria spesies; 3) determine the cellulolytic bacteria species that have the highest cellulase activity; 4) determine the amylolytic bacteria species that have the highest amylase activity. This research was conduct at the Microbiology Laboratory-Biology Departement-State University of Malang, Microbiology Laboratory-Faculty of Medicine-Brawijaya University, Chemistry Laboratory-Muhammadiyah Malang University. Twenty five grams sample were ground and diluted in 225 ml nutrient broth to get 10-1 suspension. Then the suspension were diluted gradually until 10-10. The suspension were inoculated on nutrient agar medium 0.1 ml each, and incubated in 370C during 1x24 hours. Each bacteria colonies were isolated and determine to know which one were the cellulolytic and the amylolytic bacteria. The bacteria isolates were identify. Afterward the cellulase activity as well as the amylase activity were analyzed. The research results shows that: 1) there are 4 cellulolytic bacteria spesies, i.e: Micrococcus luteus, Bacillus pumilus, Planococcus citreus, and Bacillus cereus; 2) there are 4 amylolytic bacteria species, i.e: Bacillus firmus, Nitrobacter sp., Bacillus mycoides, and Pseudomonas aeruginosa; 3) Bacillus cereus has the highest cellulase activity; 4) Nitrobacter sp. has the highest amylase activity.</p><p><br /><strong>Keywords</strong>: biodiversity, cellulolytic bacteria, amylolytic bacteria, decayed mangrove stem waste product.</p>

APA, Harvard, Vancouver, ISO, and other styles

24

Zhang, Mei, Hui Zhang, Jie-Xuan Zheng, Hui Mo, Kuai-Fei Xia, and Shu-Guang Jian. "Functional Identification of Salt-Stress-Related Genes Using the FOX Hunting System from Ipomoea pes-caprae." International Journal of Molecular Sciences 19, no. 11 (November 2, 2018): 3446. http://dx.doi.org/10.3390/ijms19113446.

Full text

Abstract:

Ipomoea pes-caprae is a seashore halophytic plant and is therefore a good model for studying the molecular mechanisms underlying salt and stress tolerance in plant research. Here, we performed Full-length cDNA Over-eXpressor (FOX) gene hunting with a functional screening of a cDNA library using a salt-sensitive yeast mutant strain to isolate the salt-stress-related genes of I. pes-caprae (IpSR genes). The library was screened for genes that complemented the salt defect of yeast mutant AXT3 and could grow in the presence of 75 mM NaCl. We obtained 38 candidate salt-stress-related full-length cDNA clones from the I. pes-caprae cDNA library. The genes are predicted to encode proteins involved in water deficit, reactive oxygen species (ROS) scavenging, cellular vesicle trafficking, metabolic enzymes, and signal transduction factors. When combined with the quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analyses, several potential functional salt-tolerance-related genes were emphasized. This approach provides a rapid assay system for the large-scale screening of I. pes-caprae genes involved in the salt stress response and supports the identification of genes responsible for the molecular mechanisms of salt tolerance.

APA, Harvard, Vancouver, ISO, and other styles

25

Dong, Yinglu, Peiyuan Jin, Huangwei Zhang, Jian Hu, Kurt Lamour, and Zhimin Yang. "Distribution and Prevalence of Plant-Parasitic Nematodes of Turfgrass at Golf Courses in China." Biology 11, no. 9 (September 6, 2022): 1322. http://dx.doi.org/10.3390/biology11091322.

Full text

Abstract:

We sampled 127 turfgrass soil samples from 33 golf courses in NC, EC, and SC for plant-parasitic nematodes (PPNs). PPNs were extracted from soil samples using the shallow dish method and were identified at the genus or species levels with a combination of morphological and molecular methods. The results revealed 41 species of nematode belonging to 20 genera and 10 families. Nine genera are new records of PPNs associated with turfgrass in China. The PPNs show strong geographical distributions. Of the 20 genera, Helicotylenchus, Paratrichodorus, Hoplolaimus, Meloidogyne, Hemicriconemoides, and Mesocriconema showed higher infestation and frequency, and most of these genera had numbers in soil samples above established damage thresholds. Four golf courses had soil samples with PPNs > 30%, indicating the potential for nematode damage. The biodiversity indices H’, SR, J’, λ, and H2 showed significant differences among different regions and turfgrass species; H’, SR, J’, and H2 were significantly higher in EC than in NC and SC, while λ was lowest in EC. Creeping bentgrass had the highest H’, SR, J’, and H2 and the lowest λ in comparison with seashore paspalum and hybrid bermudagrass. These findings provide baseline information on the occurrence of turfgrass-associated PPNs in China, and have important implications for the effective management of PPNs causing damage on turfgrass.

APA, Harvard, Vancouver, ISO, and other styles

26

Fetjah, Dounia, Zaina Idardare, Bouchaib Ihssane, Lalla Fatima Zohra Ainlhout, and Laila Bouqbis. "Seasonal Paspalum vaginatum Physiological Characteristics Change with Agricultural Byproduct Biochar in Sandy Potting Soil." Biology 11, no. 4 (April 7, 2022): 560. http://dx.doi.org/10.3390/biology11040560.

Full text

Abstract:

A plastic pot open-air trial was conducted with the Paspalum vaginatum (seashore paspalum) using different rates of biochar or compost addition to sandy loam soil and two water treatments (60% and 20% of the water-holding capacity of the control) during three seasons (winter, spring, and summer). Paspalum growth, physiological characteristics, and physicochemical properties of soil were investigated. The effect of biochar on soil properties was assessed using factor analysis of mixed data (FAMD). Additionally, multiple factorial designs (MFA) were used to examine the impact of three biochars on physiological functions. Peanut hull biochar application increased soil fertility and chlorophyll concentration of paspalum leaves significantly compared to the other biochars. Physiological characteristics were significantly improved with peanut hull biochar under summer compared to winter and spring due to the accumulation of nutrients in the soil by the decomposition of biochar. The application rate of the three biochars reduced the water requirements of paspalum. The best result was obtained by incorporating 6% peanut hull biochar into the soil, which resulted in better soil quality and healthy grass in dryland conditions while using 47.5% less water. These findings can be suitable for golf managers and can serve as a solution for dry zones.

APA, Harvard, Vancouver, ISO, and other styles

27

Koźmińska, Aleksandra, Iwona Kamińska, and Ewa Hanus-Fajerska. "Sulfur-Oxidizing Bacteria Alleviate Salt and Cadmium Stress in Halophyte Tripolium pannonicum (Jacq.) Dobrocz." International Journal of Molecular Sciences 25, no. 5 (February 20, 2024): 2455. http://dx.doi.org/10.3390/ijms25052455.

Full text

Abstract:

The aim of this study was to investigate how introducing halophilic sulfur-oxidizing bacteria (SOB) Halothiobacillus halophilus to the growth substrate affects the physiological and biochemical responses of the halophyte Tripolium pannonicum (also known as sea aster or seashore aster) under salt and cadmium stress conditions. This study assessed the plant’s response to these stressors and bacterial inoculation by analyzing various factors including the accumulation of elements such as sodium (Na), chloride (Cl), cadmium (Cd) and sulfur (S); growth parameters; levels of photosynthetic pigments, proline and phenolic compounds; the formation of malondialdehyde (MDA); and the plant’s potential to scavenge 2,2-Diphenyl-1-picrylhydrazyl (DPPH). The results revealed that bacterial inoculation was effective in mitigating the deleterious effect of cadmium stress on some growth criteria. For instance, stem length was 2-hold higher, the growth tolerance index was 3-fold higher and there was a 20% increase in the content of photosynthetic pigments compared to non-inoculated plants. Furthermore, the SOB contributed to enhancing cadmium tolerance in Tripolium pannonicum by increasing the availability of sulfur in the plant’s leaves, which led to the maintenance of an appropriate, about 2-fold-higher level of phenolic compounds (phenylpropanoids and flavonols), as well as chloride ions. The level of MDA decreased after bacterial application in all experimental variants except when both salt and cadmium stress were present. These findings provide novel insights into how halophytes respond to abiotic stress following inoculation of the growth medium with sulfur-oxidizing bacteria. The data suggest that inoculating the substrate with SOB has a beneficial effect on T. pannonicum’s tolerance to cadmium stress.

APA, Harvard, Vancouver, ISO, and other styles

28

Zheng, Jiexuan, Ruoyi Lin, Lin Pu, Zhengfeng Wang, Qiming Mei, Mei Zhang, and Shuguang Jian. "Ectopic Expression of CrPIP2;3, a Plasma Membrane Intrinsic Protein Gene from the Halophyte Canavalia rosea, Enhances Drought and Salt-Alkali Stress Tolerance in Arabidopsis." International Journal of Molecular Sciences 22, no. 2 (January 8, 2021): 565. http://dx.doi.org/10.3390/ijms22020565.

Full text

Abstract:

Aquaporins are channel proteins that facilitate the transmembrane transport of water and other small neutral molecules, thereby playing vital roles in maintaining water and nutrition homeostasis in the life activities of all organisms. Canavalia rosea, a seashore and mangrove-accompanied halophyte with strong adaptability to adversity in tropical and subtropical regions, is a good model for studying the molecular mechanisms underlying extreme saline-alkaline and drought stress tolerance in leguminous plants. In this study, a PIP2 gene (CrPIP2;3) was cloned from C. rosea, and its expression patterns and physiological roles in yeast and Arabidopsis thaliana heterologous expression systems under high salt-alkali and high osmotic stress conditions were examined. The expression of CrPIP2;3 at the transcriptional level in C. rosea was affected by high salinity and alkali, high osmotic stress, and abscisic acid treatment. In yeast, the expression of CrPIP2;3 enhanced salt/osmotic and oxidative sensitivity under high salt/osmotic and H2O2 stress. The overexpression of CrPIP2;3 in A. thaliana could enhance the survival and recovery of transgenic plants under drought stress, and the seed germination and seedling growth of the CrPIP2;3 OX (over-expression) lines showed slightly stronger tolerance to high salt/alkali than the wild-type. The transgenic plants also showed a higher response level to high-salinity and dehydration than the wild-type, mostly based on the up-regulated expression of salt/dehydration marker genes in A. thaliana plants. The reactive oxygen species (ROS) staining results indicated that the transgenic lines did not possess stronger ROS scavenging ability and stress tolerance than the wild-type under multiple stresses. The results confirmed that CrPIP2;3 is involved in the response of C. rosea to salt and drought, and primarily acts by mediating water homeostasis rather than by acting as an ROS transporter, thereby influencing physiological processes under various abiotic stresses in plants.

APA, Harvard, Vancouver, ISO, and other styles

29

Zheng, Jiexuan, Ruoyi Lin, Lin Pu, Zhengfeng Wang, Qiming Mei, Mei Zhang, and Shuguang Jian. "Ectopic Expression of CrPIP2;3, a Plasma Membrane Intrinsic Protein Gene from the Halophyte Canavalia rosea, Enhances Drought and Salt-Alkali Stress Tolerance in Arabidopsis." International Journal of Molecular Sciences 22, no. 2 (January 8, 2021): 565. http://dx.doi.org/10.3390/ijms22020565.

Full text

Abstract:

Aquaporins are channel proteins that facilitate the transmembrane transport of water and other small neutral molecules, thereby playing vital roles in maintaining water and nutrition homeostasis in the life activities of all organisms. Canavalia rosea, a seashore and mangrove-accompanied halophyte with strong adaptability to adversity in tropical and subtropical regions, is a good model for studying the molecular mechanisms underlying extreme saline-alkaline and drought stress tolerance in leguminous plants. In this study, a PIP2 gene (CrPIP2;3) was cloned from C. rosea, and its expression patterns and physiological roles in yeast and Arabidopsis thaliana heterologous expression systems under high salt-alkali and high osmotic stress conditions were examined. The expression of CrPIP2;3 at the transcriptional level in C. rosea was affected by high salinity and alkali, high osmotic stress, and abscisic acid treatment. In yeast, the expression of CrPIP2;3 enhanced salt/osmotic and oxidative sensitivity under high salt/osmotic and H2O2 stress. The overexpression of CrPIP2;3 in A. thaliana could enhance the survival and recovery of transgenic plants under drought stress, and the seed germination and seedling growth of the CrPIP2;3 OX (over-expression) lines showed slightly stronger tolerance to high salt/alkali than the wild-type. The transgenic plants also showed a higher response level to high-salinity and dehydration than the wild-type, mostly based on the up-regulated expression of salt/dehydration marker genes in A. thaliana plants. The reactive oxygen species (ROS) staining results indicated that the transgenic lines did not possess stronger ROS scavenging ability and stress tolerance than the wild-type under multiple stresses. The results confirmed that CrPIP2;3 is involved in the response of C. rosea to salt and drought, and primarily acts by mediating water homeostasis rather than by acting as an ROS transporter, thereby influencing physiological processes under various abiotic stresses in plants.

APA, Harvard, Vancouver, ISO, and other styles

30

Erkers, Tom, Nona Struyf, Tojo James, Francesco Marabita, Mattias Vesterlund, Nghia Vu, Cornelia Arnroth, et al. "Abstract 6612: Data-driven hallmarks of cancer as a new paradigm for precision medicine: multi-omics and functional profiling in acute myeloid leukemia." Cancer Research 83, no. 7_Supplement (April 4, 2023): 6612. http://dx.doi.org/10.1158/1538-7445.am2023-6612.

Full text

Abstract:

Abstract The cancer hallmark concept defines biological properties that play a key role in cancer development and progression. The hallmarks reflect generic properties across all cancer types, and are not directly quantifiable nor applicable in cancer diagnostics. Here, we applied a data-driven approach to identify quantifiable hallmarks to be used as a basis for precision cancer medicine (PCM) in Acute Myeloid Leukemia (AML). We applied deep exome, transcriptome, DNA methylation and proteome profiling as well as ex-vivo functional testing of 525 drugs to 118 AML patient samples. Unsupervised multi-omic dimensionality reduction defined 11 independent axes of biological variability that we interpreted to reflect data-driven hallmarks (DDHM) of AML. Each DDHM integrates and ranks different data types and features, pinpointing those molecular features that were most informative for each hallmark. We calculated values for the 11 DDHM for each patient, constructing a DDHM-based precision medicine approach for AML diagnosis and therapy assignment. Most DDHMs were driven by other data types than genomics. For several DDHMs, different cytogenetic and mutational drivers converge on the same hallmarks and specific drug vulnerabilities. We also see how DDHM predictors of poor prognosis and high-risk AML are distinct from those that dictate specific drug response vulnerabilities. DDHM 2 reflected the cell differentiation path leading towards resistance to BH3 mimetics, ACK-inhibitors, and anthracyclines, and sensitivity to MEK inhibitors and TLR8 agonists. DDHM 2 derived a strong impact from protein expression of GATA2, MLLT11, DNMT3B and from RNA expression of WT1 and SOX4 as well as from multiple markers of different monocytic subtypes. DDHM 5 depicted cell cycle regulation and the Megakaryocytic-erythrocyte progenitor cell state that was enriched in AML patients with antecedent hematological disease. Interestingly, DDHM5 was linked to the sensitivity to purine analogs and vinca alkaloids. Moreover, DDHMs 1 and 8 captured clinical risk groups, prognosis, and responsiveness to hypomethylating agents. These DDHMs also revealed the phenotypic and functional biology that distinguished patients with high versus low FLT3-ITD mutant allele frequency. Validation of the DDHMs is realized through profiling and analysis of prospective AML samples, AML cell lines and previously published datasets. In summary, we present a data-driven approach for defining hallmarks in AML. The application of the DDHMs in AML provides a new paradigm for PCM and an opportunity for combinatorial therapeutic targeting. Each patient is characterized by a combination of independent and potentially druggable hallmarks, as opposed to traditional stratification in PCM, where each patient is assigned to one specific subgroup defined by genetic or other biomarkers. Citation Format: Tom Erkers, Nona Struyf, Tojo James, Francesco Marabita, Mattias Vesterlund, Nghia Vu, Cornelia Arnroth, Albin Österroos, Anna Bohlin, Sofia Bengtzén, Matthias Stahl, Rozbeh Jafari, Lukas Orre, Yudi Pawitan, Brinton Seashore-Ludlow, Janne Lehtiö, Sören Lehmann, Päivi Östling, Olli Kallioniemi. Data-driven hallmarks of cancer as a new paradigm for precision medicine: multi-omics and functional profiling in acute myeloid leukemia. [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 6612.

APA, Harvard, Vancouver, ISO, and other styles

31

Carpaneto, Giuseppe Maria, Cosimo Baviera, Alessandro Bruno Biscaccianti, Pietro Brandmayr, Antonio Mazzei, Franco Mason, Alessia Battistoni, et al. "A Red List of Italian Saproxylic Beetles: taxonomic overview, ecological features and conservation issues (Coleoptera)." Fragmenta Entomologica 47, no. 2 (December 30, 2015): 53. http://dx.doi.org/10.4081/fe.2015.138.

Full text

Abstract:

The main objectives of this review are: 1) the compilation and updating of a reference database for Italian saproxylic beetles, useful to assess the trend of their populations and communities in the next decades; 2) the identification of the major threats involving the known Italian species of saproxylic beetles; 3) the evaluation of the extinction risk for all known Italian species of saproxylic beetles; 4) the or- ganization of an expert network for studying and continuous updating of all known species of saproxylic beetle species in Italy; 5) the creation of a baseline for future evaluations of the trends in biodiversity conservation in Italy; 6) the assignment of ecological categories to all the Italian saproxylic beetles, useful for the aims of future researches on their communities and on forest environments. The assess- ments of extinction risk are based on the IUCN Red List Categories and Criteria and the most updated guidelines. The assessments have been carried out by experts covering different regions of Italy, and have been evaluated according to the IUCN standards. All the beetles whose larval biology is sufficiently well known as to be considered saproxylic have been included in the Red List, either the autochtho- nous species (native or possibly native to Italy) or a few allochthonous species recently introduced or probably introduced to Italy in his- toric times. The entire national range of each saproxylic beetle species was evaluated, including large and small islands; for most species, the main parameters considered for evaluation were the extent of their geographical occurrence in Italy, and the number of known sites of presence. 2049 saproxylic beetle species (belonging to 66 families) have been listed, assigned to a trophic category (Table 3) and 97% of them have been assessed. On the whole, threatened species (VU + EN + CR) are 421 (Fig. 6), corresponding to 21 % of the 1988 as- sessed species; only two species are formally recognized to be probably Regionally Extinct in Italy in recent times. Little less than 65% of the Italian saproxylic beetles are not currently threatened with extinction, although their populations are probably declining. In forest environments, the main threats are habitat loss and fragmentation, pollution due to the use of pesticide against forest pests, and habitat simplification due to economic forest management. In coastal environments, the main threats are due to massive touristic exploitation such as the excess of urbanization and infrastructures along the seashore, and the complete removal of woody materials as tree trunks stranded on the beaches, because this kind of intervention is considered an aesthetic amelioration of seaside resorts. The number of spe- cies whose populations may become impoverished by direct harvest (only a few of large forest beetles frequently collected by insect traders) is very small and almost negligible. The Red List is a fundamental tool for the identification of conservation priorities, but it is not a list of priorities on its own. Other elements instrumental to priority setting include the cost of actions, the probability of success,and the proportion of the global population of each species living in Italy, which determines the national responsibility in the long-term conservation of that species. In this scenario, information on all species endemic to Italy, to Corso-Sardinia, to the Tuscan-Corsican ar- eas, and to the Siculo-Maltese insular system are given. A short analysis on relationships among beetle species traits, taxonomy, special- ist approaches, and IUCN Categories of Risk is also presented.

APA, Harvard, Vancouver, ISO, and other styles

32

Getman, Michael, Samantha J. England, James Palis, and Laurie A. Steiner. "Inhibition of LSD1 Influences Multiple Mechanisms of Epigenetic Gene Regulation During Terminal Erythroid Maturation." Blood 120, no. 21 (November 16, 2012): 3442. http://dx.doi.org/10.1182/blood.v120.21.3442.3442.

Full text

Abstract:

Abstract Abstract 3442 The maturation of a committed erythroid progenitor to a functional red blood cell is a complex process involving significant changes in gene expression during a time of rapid cell division and nuclear condensation. LSD1 (Lysine-Specific Histone Demethylase 1) is a histone H3 lysine 4 (H3K4) and lysine 9 (H3K9) demethylase that plays pivotal role in this process. LSD1 participates in both enhancer and repressor complexes, and facilitates repression of γ-globin by participating in the Direct Repeat Erythroid Complex (Cui, MCB, 2011). LSD1 inhibitors Tranylcypromine (TCP) and Pargyline (PG) are being investigated as potential therapies for the β-globinopathies, however little is known about the broader functional or genomic consequences of LSD1 inhibition on terminal erythroid maturation. Both TCP and PG impair erythroid maturation in Extensively Self Renewing Erythroblasts (ESREs), a primary cell model of terminal erythroid maturation. ESREs are primary cells derived from fetal liver that proliferate extensively in culture, but retain the ability to appropriately mature and enucleate (England, Blood, 2011), making them ideal for functional and genomic studies of terminal erythroid maturation. In untreated or vehicle (DMSO) treated cultures >90% of cells are benzidine positive by day3 of maturation. In contrast, cultures treated with 400um PG, 1um TCP, or 2um TCP were 72, 42, and 33% benzidine positive by maturation day3, respectively. Cells in the TCP-and PG- treated cultures also had morphologic evidence of impaired maturation, with larger nuclei and more basophilic cytoplasm. In addition to its role as a histone demethylase, LSD1 stabilizes DNMT1 (DNA methyltransferase 1; Wang, Nat Genet 2009). We hypothesized that loss of DNA methylation contributes to the maturation impairment seen with LSD1 inhibitors, and that inhibition of DNMTs with decitabine would also impair terminal erythroid maturation. Consistent with this hypothesis, ESREs treated with decitabine demonstrated a dose-dependent impairment of maturation similar to that seen with PG and TCP. To elucidate the molecular mechanisms underlying the maturation impairment in TCP- and PG- treated cultures, levels of H3K4me2 and methylated DNA (5-methyl cytosine, 5-mC) were assessed both globally and at specific loci. An ELISA (Enzyme-linked Immunosorbent Assay) was used to assess global levels of H3K4me2 and 5-mC in vehicle-, PG-, and TCP-treated cultures after 24 hours of maturation. Global levels of H3K4me2 were significantly higher in PG- and TCP- treated samples than control. In maturing cells, there was no significant difference in the level of 5-mC in vehicle- and inhibitor- treated cultures. It is well established, however, that global DNA methylation decreases with erythroid maturation (Seashore, Science, 2011), and a significant decrease in 5-mC occurs in ESREs during the first 24hrs of maturation. As TCP- and vehicle- treated cultures mature differently, the effect of TCP on 5-mC levels was also assessed in self-renewing ESREs at the proerythroblast stage. Unlike maturing cells, TCP-treated proerythroblasts had a significant decrease in 5-mC levels compared to control. Chromatin immunoprecipitation (ChIP) was used to examine the local effects of LSD1 inhibition on H3K4me2 enrichment at erythroid-specific promoters. TCP-treated cultures had non-uniform changes in H3K4me2 enrichment, with levels increased at some promoters (e.g. protein 4.1,εy-globin), but unchanged at others (e.g. β-globin). To further study the relationship between LSD1 inhibition and H3K4me2 levels, ChIP-seq was used to identify LSD1 sites that co-localized with putative enhancers, defined as peaks of H3K4me2 binding > than 1kb from a transcription start site. ChIP-qPCR was used to compare the level of H3K4me2 at 5 validated enhancer-associated LSD1 sites in vehicle- and TCP-treated cells. The effect of TCP was variable, with only 2/5 enhancer-associated LSD1 sites having increased H3K4me2. Lastly, the local effects of inhibitors on 5-mC were examined using a methyl binding domain pulldown coupled with qPCR. In TCP-treated cells, 5-mC levels declined at several loci, most notably at the εy-globin promoter. Taken together, these results suggest that the impaired erythroid maturation associated with LSD1 inhibition results from the perturbation of multiple mechanisms of epigenetic regulation. Disclosures: No relevant conflicts of interest to declare.

APA, Harvard, Vancouver, ISO, and other styles

33

Peev, Dimitar. "Coastal zones – vulnerable biodiversity repositories: topics and contributions of the First European Symposium Research, conservation and management of the biodiversity of European seashores/RCMBES." Annual of Sofia University "St. Kliment Ohridski", Faculty of Biology, Book 2 – Botany 101 (2017): 12–31. http://dx.doi.org/10.60066/gsu.biofac.bot.101.12-31.

Full text

Abstract:

This paper aims to summarize the work, topics and contributions of the First European Symposium Research, conservation and management of biodiversity of European seashores/RCMBES, 8-12 May 2017, Primorsko, Bulgaria. The symposium was organized by OPIMOS and ECOPAN in cooperation with the Bulgarian Academy of Sciences, Faculty of Biology of Sofia University “St. Kliment Ohridski” and Primorsko Club Ltd. The symposium aimed to: 1) Present the status of scientific approaches within the European coastal areas; 2) Discuss the role of biodiversity research in trans-border issues; 3) Bring together scientists, academics, practitioners with a view to strengthening and promoting the trans-border cooperation and this with municipalities; 4) Define the priorities concerning various aspects of conservation research and good practices. In accordance, thirteen more detailed symposium topics were announced and later on discussed at the scientific sessions, during the field trip along the southern Bulgarian Black Sea coast and Strandzha Mt, and at the Symposium Round Table. In total, 65 scientific reports (5 plenary lectures, 26 oral presentations and 34 posters), prepared by 146 contributors from 11 countries were presented. The main topics of the contributions and studied regions, described briefly in the paper, helped to outline different problems related to the studies and conservation of the coastal areas, to share some good practices and new methodological approaches, as well as to define priorities and discuss the future design of studies and activities in these exceptionally rich in biodiversity, but also severely threatened areas.

APA, Harvard, Vancouver, ISO, and other styles

34

Janetzki, Nathan, Kirsten Benkendorff, and Peter G. Fairweather. "Rocks of different mineralogy show different temperature characteristics: implications for biodiversity on rocky seashores." PeerJ 9 (January 26, 2021): e10712. http://dx.doi.org/10.7717/peerj.10712.

Full text

Abstract:

As some intertidal biota presently live near their upper tolerable thermal limits when emersed, predicted hotter temperatures and an increased frequency of extreme-heat events associated with global climate change may challenge the survival and persistence of such species. To predict the biological ramifications of climate change on rocky seashores, ecologists have collected baseline rock temperature data, which has shown substrate temperature is heterogenous in the rocky intertidal zone. A multitude of factors may affect rock temperature, although the potential roles of boulder surface (upper versus lower), lithology (rock type) and minerology have been largely neglected to date. Consequently, a common-garden experiment using intertidal boulders of six rock types tested whether temperature characteristics differed among rock types, boulder surfaces, and whether temperature characteristics were associated with rock mineralogy. The temperature of the upper and lower surfaces of all six rock types was heterogeneous at the millimetre to centimetre scale. Three qualitative patterns of temperature difference were identified on boulder surfaces: gradients; mosaics; and limited heterogeneity. The frequency of occurrence of these temperature patterns was heavily influenced by cloud cover. Upper surfaces were generally hotter than lower surfaces, plus purple siltstone and grey siltstone consistently had the hottest temperatures and white limestone and quartzite the coolest. Each rock type had unique mineralogy, with maximum temperatures correlated with the highest metallic oxide and trace metal content of rocks. These baseline data show that rock type, boulder surface and mineralogy all contribute to patterns of heterogenous substrate temperature, with the geological history of rocky seashores potentially influencing the future fate of species and populations under various climate change scenarios.

APA, Harvard, Vancouver, ISO, and other styles

35

Claremont, Martine, Geerat J. Vermeij, Suzanne T. Williams, and David G. Reid. "Global phylogeny and new classification of the Rapaninae (Gastropoda: Muricidae), dominant molluscan predators on tropical rocky seashores." Molecular Phylogenetics and Evolution 66, no. 1 (January 2013): 91–102. http://dx.doi.org/10.1016/j.ympev.2012.09.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Park, Jong-Seok, Mi-Jeong Jeon, and Kee-Jeong Ahn. "Description of Heterota sunjaei sp. nov. from Korean seashores and an annotated catalog of the littoral genus Heterota (Coleoptera: Staphylinidae: Aleocharinae)." Canadian Entomologist 140, no. 1 (February 2008): 111–18. http://dx.doi.org/10.4039/n07-015.

Full text

Abstract:

AbstractA new species, Heterota sunjaei Park and Ahn sp. nov. (type locality: Geumgab Beach, Jindo, Jeonnam Province, Korea), is described from Korea. The new species is compared with the related species H. plumbea (Waterhouse) and H. arenaria Cameron and the differences are summarized. An illustration of the habitus and line drawings of diagnostic characters are presented. An annotated world catalog of the genus Heterota Mulsant and Rey is provided.

APA, Harvard, Vancouver, ISO, and other styles

37

Janetzki, Nathan, Kirsten Benkendorff, and Peter G. Fairweather. "Where three snail species attach while emersed in relation to heterogenous substrate temperatures underneath intertidal boulders." PeerJ 9 (July 9, 2021): e11675. http://dx.doi.org/10.7717/peerj.11675.

Full text

Abstract:

Mobile intertidal gastropods can employ behavioural thermoregulation to mitigate thermal stress, which may include retreating under boulders when emersed. However, little is known about how gastropod occupancy of under-boulder habitats is associated with any variations in substrate temperature that exist under boulders. Thermal imagery was used to measure the temperature of boulder lower surfaces and investigate how three snail species were associated at low tide with the maximum and average temperatures underneath grey siltstone and quartzite. Lower boulder surfaces had heterogeneous temperatures, with grey siltstone having temperature gradients and quartzite temperature showing mosaics. Temperature differences between the hottest and coolest gradient or mosaic locations were >5 °C; thus there was a range of temperatures that snails could interact with. All three snail species occupied cooler parts of temperature mosaics or gradients, avoiding the hottest areas. Stronger associations were detected on the hotter grey siltstone and for the more-thermally sensitive Nerita atramentosa and Diloma concameratum. Even though snails were associated with cooler areas, some individuals were still exposed to extreme substratum heat (>50 °C). These results suggest that gastropod thermoregulatory behaviour is far more complex than simply retreating underneath boulders at low tide, as there is also a range of under-boulder temperatures that they interact with. Untangling interactions between intertidal gastropods and heterogenous substrate temperatures is important given rocky seashores already represent a thermally-variable and potentially-stressful habitat, which may be exacerbated further given predictions of warming temperatures associated with climate change.

APA, Harvard, Vancouver, ISO, and other styles

38

Parker, Chris. "Paspalum vaginatum (seashore paspalum)." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.110291.

Full text

Abstract:

This datasheet on Paspalum vaginatum covers Identity, Overview, Distribution, Dispersal, Hosts/Species Affected, Diagnosis, Biology & Ecology, Environmental Requirements, Natural Enemies, Impacts, Uses, Prevention/Control, Further Information.

APA, Harvard, Vancouver, ISO, and other styles

39

Rahayu, Rahayu, Fatimah Suwardjo, Ji Bae Eun, Geun Mo Yang, and Soo Choi Joon. "Genetic diversity and morphological characteristics of native seashore paspalum in Indonesia." Biodiversitas Journal of Biological Diversity 21, no. 11 (October 5, 2020). http://dx.doi.org/10.13057/biodiv/d211101.

Full text

Abstract:

Abstract. Rahayu, Fatimah, Bae EJ, Mo YG, Choi JS. 2020. Genetic diversity and morphological characteristics of native seashore paspalum in Indonesia. Biodiversitas 21: 4981-4989. Seashore paspalum (Paspalum vaginatum) is a warm-season turfgrass indigenous to tropical and coastal areas worldwide. The objectives of this study were to measure the genetic diversity and genetic variation of Indonesian seashore paspalum germplasm. Three turf quality, six morphological characters, and ten SSR (microsatellite) markers were used to assess genetic relationships and genetic variation among 22 germplasm resources from Indonesia and one commercial variety (Salam) from United States of America. The results showed significant variation for five morphological characters among 23 tested seashore paspalum accessions. The cluster analysis of morphological characters of 23 seashore paspalum accessions using 0,6 cut off divided into three morphological types: tall high-density, intermediate, and dwarf low-density ecotype. The genetic variation revealed 22 alleles with average number of alleles per locus was 2 and polymorphism information content (PIC) values average was 0.33. The microsatellite marker cluster analysis showed that 23 seashore paspalum accessions were grouped into two major groups, with a genetic similarity coefficient was 0,72. The low level of genetic diversity occurred among Indonesia natural grass germplasm and the genetic distance was relatively low between Indonesian germplasm and Salam variety. The genetic diversity and morphological characteristics will be useful for further study and utilization of Indonesian seashore paspalum germplasm.

APA, Harvard, Vancouver, ISO, and other styles

40

RAHAYU, RAHAYU, DWI PRIYO ARIYANTO, AVIDA HANA USROTIN, FAISAL REZA HATAMI, and YANG GEUN MO. "Assessment of turf quality in Paspalum vaginatum Sw. accessions of Sumatra, Java, and Bali (Indonesia) with clay and amended sand growing media." Biodiversitas Journal of Biological Diversity 24, no. 3 (April 3, 2023). http://dx.doi.org/10.13057/biodiv/d240338.

Full text

Abstract:

Abstract. Rahayu, Ariyanto DP, Usrotin AH, Hatami FR, Mo YG. 2023. Assessment of turf quality in Paspalum vaginatum Sw. accessions of Sumatra, Java, and Bali (Indonesia) with clay and amended sand growing media. Biodiversitas 24: 1650-1658. Seashore paspalum (Paspalum vaginatum Sw.) is a selected turfgrass species in the FIFA football world cup Qatar 2022. The choice considers its turf quality, growth habit, quick recovery from damage, tolerance in warm conditions, and low water consumption. Since the breeding program of seashore paspalum worldwide still needs to be improved and is yet to start in Indonesia, we suppose that in the future, seashore paspalum will become a favorite turfgrass industry. Previous studies showed that Indonesia has many accessions to the germplasm of seashore paspalum. This study aimed to find superior mother lines of Indonesian germplasm accession by select of visual and functional quality using clay soil of vertisol and vertisol-amended sand as growing media for quality evaluation. This study was a wild-type collection followed by a plot experiment using Randomized Complete Block Design. In this experiment, the control was using a commercialized cultivar. Seashore paspalum accessions were collected from Java, Bali, and Sumatra Indonesian islands. Observation of variables were visual qualities, i.e., tiller density, color, leaf texture, uniformity, and functional quality, i.e., surface covering, recoverability, clippings dry weight, root length, root dry weight. The National Turfgrass Evaluation Program (NTEP) rated those qualities by scoring. The quality index of turfgrass used a rating score formulated from a visual and functional quality score. The data were analyzed using DMRT and T-test. Results showed that growing paspalum in clay-amended sand media showed a better recovery rate than the accessions grown in vertisol media. Mowing the grass can reduce plant height and leaf texture, and increases the clipping dry weight. Sand amendment to vertisol soil can improve the seashore paspalum visual qualities, i.e., leaf texture, tiller density, color score, and functional quality, such as root length. Seashore paspalum accessions vary in quality, i.e., visual and functional. Native accessions have a better recovery rate, higher tiller density, and uniformity than the control but a higher clipping yield. Bogor accession had faster soil surface coverage, Siak accession had a high recovery rate. Rumbei accession was the highest clipping dry weight, fast land cover, and high root dry weight. The accessions of Siak and Rumbei have higher quality index than the control after mowing. Siak accession performed better in vertisol, whereas Rumbei accession performed better in vertisol-amended sand. The performance of Rumbai and Siak accessions showed that seashore paspalum from Sumatra has better characteristics than Java and Bali and is promising for further cultivar development.

APA, Harvard, Vancouver, ISO, and other styles

41

Chantarasiri, Aiya. "Species identification of stranded seaweeds on eastern seashores of Thailand and utilization as a sole carbon source for single cell oils synthesized by oleaginous yeasts." Biodiversitas Journal of Biological Diversity 21, no. 6 (May 4, 2020). http://dx.doi.org/10.13057/biodiv/d210603.

Full text

Abstract:

Abstract. Chantarasiri A. 2020. Species identification of stranded seaweeds on eastern seashores of Thailand and utilization as a sole carbon source for single-cell oils synthesized by oleaginous yeasts. Biodiversitas 21: 2353-2361. Many stranded seaweeds are left to decompose on the seashore. This study aimed to identify and utilize the stranded seaweeds collected from seashores in Rayong Province on the east coast of Thailand. Seaweeds were identified as Dictyota dichotoma strain A and Padina australis strain B based on their distinctive morphology and 18S rDNA sequence analyses. The most abundant seaweed, D. dichotoma strain A, was analyzed for chemical compositions following AOAC standard methods. This seaweed was considered a low-cost carbon source for the cultivation of three oleaginous yeasts without any other nutrient supplements. All oleaginous yeasts utilized the carbon source from Dictyota medium for growth and accumulation of single-cell oils (SCOs). The oleaginous yeast, Cryptococcus albidus strain TISTR 5103 accumulated SCOs at 51% (w/w). The resulting SCOs from oleaginous yeasts comprise many fatty acids with 10 to 22 carbon atoms. This study is the first to identify stranded seaweeds in Rayong Province using morphological and genetic techniques. Results showed the potential application of stranded seaweeds as a low-cost carbon source for SCO biosynthesis of oleaginous yeasts.

APA, Harvard, Vancouver, ISO, and other styles

42

Knight, Kathryn. "Unpredictability is key for mussels' seashore resilience." Journal of Experimental Biology 225, no. 14 (July 15, 2022). http://dx.doi.org/10.1242/jeb.244718.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Anasi, Ayman, and Scott Soby. "Draft Genome Sequences of Pseudomonas sp. Strains MWU12-2037 and MWU12-2345, Isolated from Peat and Sandy Bog Soils in the Cape Cod National Seashore, Massachusetts." Microbiology Resource Announcements, July 12, 2022. http://dx.doi.org/10.1128/mra.00536-22.

Full text

Abstract:

Pseudomonas sp. strains MWU12-2037 and MWU12-2345 were isolated from peat and sandy bog soils in wild cranberry bogs in the Cape Cod National Seashore (Massachusetts, USA) as part of a culture-dependent survey of relatively unexplored wetlands soil microbiomes. Both genomes exceeded 7 Mbp.

APA, Harvard, Vancouver, ISO, and other styles

44

Sadeghi, Nima, Kiranpreet Kaur, and Scott Soby. "Draft Genomic Sequences of Pseudomonas moorei Strains Isolated from Wild Cranberry Bogs in Massachusetts." Microbiology Resource Announcements, September 22, 2022. http://dx.doi.org/10.1128/mra.00650-22.

Full text

Abstract:

Pseudomonas moorei has been used to detoxify recalcitrant environmental contaminants from the pharmaceutical industry. Two P. moorei strains were isolated from soil in the pristine wild cranberry bogs of the Cape Cod National Seashore that putatively encode genes for degradation of 4- and 5- chloro salicylates, acetaminophen, and diclofenac.

APA, Harvard, Vancouver, ISO, and other styles

45

Pittman, Arin, and Scott Soby. "Draft Genome Sequence of Pseudomonas sp. Strains MWU12-2319 and MWU12-2311, Isolated from a Wild Cranberry Bog in the Cape Cod National Seashore." Microbiology Resource Announcements, October 12, 2022. http://dx.doi.org/10.1128/mra.00869-22.

Full text

Abstract:

Pseudomonas sp. strains MWU12-2319 and MWU12-2311 were isolated from the soil of a wild cranberry bog in the Cape Cod National Seashore as part of a culture-dependent bacterial population survey. The genomes exceed 7 Mbp and contain putative gene clusters for the biosurfactant orfamides A and C.

APA, Harvard, Vancouver, ISO, and other styles

46

Kooner, Amritpal, and Scott Soby. "Draft Genome Sequence of Curtobacterium sp. Strain MWU13-2055, Isolated from a Wild Cranberry Fruit Surface in Massachusetts, USA." Microbiology Resource Announcements, September 8, 2022. http://dx.doi.org/10.1128/mra.00565-22.

Full text

Abstract:

Curtobacterium sp. strain MWU13-2055 was isolated from cranberry fruit surfaces in the Cape Cod National Seashore. The genome is 4 Mbp long with a large number of genes predicted to be devoted to heavy metal resistance, including the copAZ operon and translocases for Pb, Cd, Zn, Hg, and Cu.

APA, Harvard, Vancouver, ISO, and other styles

47

Sholl, Tyler, and Scott Soby. "Draft Genome Sequence of Pseudomonas sp. Strain MWU15-20650, Isolated from Wild Cranberry Fruit in the Cape Cod National Seashore." Microbiology Resource Announcements, July 18, 2022. http://dx.doi.org/10.1128/mra.00547-22.

Full text

Abstract:

Pseudomonas sp. strain MWU15-20650 was isolated from wild cranberry fruit surfaces in the Cape Cod National Seashore. The draft genome is 6.2 Mbp, with a G+C content of 59%, and contains predicted genes for type VI secretion systems and an N -acyl-homoserine lactone acylase. The closest known relative is Pseudomonas haemolytica .

APA, Harvard, Vancouver, ISO, and other styles

48

Lee, Kyongae, Malshik Shin, Soojung Oh, and Eunok Choe. "Chemical characteristics and antioxidant activity of the laver (Porphyra tenera) grown in southwestern seashore of Korea." FASEB Journal 26, S1 (April 2012). http://dx.doi.org/10.1096/fasebj.26.1_supplement.1025.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Jensen, Arn Rytter, Josh Jenkins Shaw, Dagmara Żyła, and Alexey Solodovnikov. "A total-evidence approach resolves phylogenetic placement of ‘Cafius’ gigas, a unique recently extinct rove beetle from Lord Howe Island." Zoological Journal of the Linnean Society, April 25, 2020. http://dx.doi.org/10.1093/zoolinnean/zlaa020.

Full text

Abstract:

Abstract Cafius gigas Lea, 1929 (Coleoptera: Staphylinidae) was a large rove beetle endemic to Lord Howe Island (LHI) resembling Cafius and the LHI flightless endemic Hesperus dolichoderes (Lea, 1925). Like several other LHI endemics, C. gigas became extinct due to human-introduced rats. It is a legacy species valuable for understanding the LHI biota in terms of evolutionary biology and historical biogeography. Whether C. gigas was a member of Cafius Curtis, 1829, restricted to oceanic shores and prone to trans-oceanic dispersal, or related to H. dolichoderes, would have different implications. We subjected C. gigas to a total-evidence phylogenetic analyses of morphological and molecular data using model-based and parsimony methods. As a result, it is transferred to Hesperus Fauvel, 1874 with the new combination Hesperus gigas (Lea, 1929) comb. nov. Our analysis indicates that the montane leaf litter inhabitant H. gigas evolved neither in situ nor from a seashore Cafius-ancestor, or from an ancestor shared by two other LHI endemic congeners, Hesperus pacificus Olliff, 1887 and H. dolichoderes. It also suggests that all three Hesperus species that currently occur on LHI could have evolved on various seamounts at various times before reaching LHI.

APA, Harvard, Vancouver, ISO, and other styles

50

Deng, Na, Huiqin Huang, Yonghua Hu, Xu Wang, and Kunlian Mo. "Paenibacillus arenilitoris sp. nov., isolated from seashore sand and genome mining revealed the biosynthesis potential as antibiotic producer." Antonie van Leeuwenhoek, August 26, 2022. http://dx.doi.org/10.1007/s10482-022-01773-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!