Gotowe bibliografie tematyczne / Choanoflagellida

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Gotowa bibliografia na temat „Choanoflagellida”

Autor: Grafiati
Data publikacji: 29 lipca 2024
Data aktualizacji: 30 lipca 2024

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Artykuły w czasopismach na temat "Choanoflagellida"

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THOMSEN, HELGE A., KURT R. BUCK, SUSAN L. COALE, DAVID L. GARRISON i MARCIA M. GOWING. "Loricate choanoflagellates (Acanthoecidae, Choanoflagellida) from the Weddell Sea, Antarctica". Zoologica Scripta 19, nr 4 (październik 1990): 367–87. http://dx.doi.org/10.1111/j.1463-6409.1990.tb00264.x.

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Espeland, Gyrid, i Jahn Throndsen. "Flagellates from Kilsfjorden, southern Norway, with description of two new species of Choanoflagellida". Sarsia 71, nr 3-4 (15.10.1986): 209–26. http://dx.doi.org/10.1080/00364827.1986.10419691.

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BUCK, KURT R., HARVEY J. MARCHANT, HELGE A. THOMSEN i DAVID L. GARRISON. "Kakoeca antarctica gen. et sp.n., a loricate choanoflagellate (Acanthoecidae, Choanoflagellida) from Antarctic sea ice with a unique protoplast suspensory membrane". Zoologica Scripta 19, nr 4 (październik 1990): 389–94. http://dx.doi.org/10.1111/j.1463-6409.1990.tb00265.x.

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Lefranc, Marie, Aurélie Thénot, Cécile Lepère i Didier Debroas. "Genetic Diversity of Small Eukaryotes in Lakes Differing by Their Trophic Status". Applied and Environmental Microbiology 71, nr 10 (październik 2005): 5935–42. http://dx.doi.org/10.1128/aem.71.10.5935-5942.2005.

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ABSTRACT Small eukaryotes, cells with a diameter of less than 5 μm, are fundamental components of lacustrine planktonic systems. In this study, small-eukaryote diversity was determined by sequencing cloned 18S rRNA genes in three libraries from lakes of differing trophic status in the Massif Central, France: the oligotrophic Lake Godivelle, the oligomesotrophic Lake Pavin, and the eutrophic Lake Aydat. This analysis shows that the least diversified library was in the eutrophic lake (12 operational taxonomic units [OTUs]) and the most diversified was in the oligomesotrophic lake (26 OTUs). Certain groups were present in at least two ecosystems, while the others were specific to one lake on the sampling date. Cryptophyta, Chrysophyceae, and the strictly heterotrophic eukaryotes, Ciliophora and fungi, were identified in the three libraries. Among the small eukaryotes found only in two lakes, Choanoflagellida and environmental sequences (LKM11) were not detected in the eutrophic system whereas Cercozoa were confined to the oligomesotrophic and eutrophic lakes. Three OTUs, linked to the Perkinsozoa, were detected only in the Aydat library, where they represented 60% of the clones of the library. Chlorophyta and Haptophyta lineages were represented by a single clone and were present only in Godivelle and Pavin, respectively. Of the 127 clones studied, classical pigmented organisms (autotrophs and mixotrophs) represented only a low proportion regardless of the library's origin. This study shows that the small-eukaryote community composition may differ as a function of trophic status; certain lineages could be detected only in a single ecosystem.
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Zheng, Bao-Hai, Zhao-Jin Chen, Yu-Ying Li, Nicola Fohrer, Yun Zhang, Dong-Yu Wu, Xue-Yan Yan i Bai-Lian Li. "Structural Characteristics and Driving Factors of the Planktonic Eukaryotic Community in the Danjiangkou Reservoir, China". Water 12, nr 12 (12.12.2020): 3499. http://dx.doi.org/10.3390/w12123499.

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Planktonic eukaryotes are widespread in aquatic ecosystems, and the study of their community composition and driving factors is of great significance to protecting and maintaining the balance of these ecosystems. This study evaluates five typical ecological sites in the Danjiangkou Reservoir—the water source for the project. This was done to comprehensively understand the composition of Danjiangkou Reservoir planktonic eukaryotes, and ensure the ecological balance of the water source for the South-to-North Water Diversion Project. The diversity of the planktonic eukaryotes in surface water and the factors driving changes in their abundance are analyzed with an 18S ribosomal DNA sequencing approach. Monitoring shows that the Danjiangkou Reservoir has good water quality. The Danjiangkou Reservoir planktonic eukaryote community is mainly composed of 11 phyla, of which Cryptomonadales is dominant, accounting for an average percentage of 65.19% of the community (47.2–84.90%). LEFSe analysis shows significant differences among samples in the abundances of 13 phyla, 20 classes, 23 orders, 26 families, and 27 genera, and there are also significant differences in the diversity of planktonic eukaryotes at different temporal and spatial scales. Redundancy analysis (RDA) show that water temperature, DO, SD, TN, and Chla are significant factors that affect the composition of the planktonic eukaryote community. Spearman rank correlation analysis combined with taxonomic difference analysis shows that Kathablepharidae and Choanoflagellida are not sensitive to environmental or physicochemical factors and that the interannual variations in their abundance are not significant. Network analysis shows that Protalveolata, Basidiomycota, P1-31, Bicosoecida, and Ochrophyta represent important nodes in the single-factor network, while Chytridiomycota, P1-31, Cryptomycota, Ochrophyta, Ichthyosporea, Bicosoecida, Protalveolata, and physicochemical factors (ORP, TN, WT, DO, SD, NH3-N, and NO3-N) represent important nodes in the two-factor network.
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Zhang, Dapeng, Yanwei Xi, Maria L. Coccimiglio, Jan A. Mennigen, Michael G. Jonz, Marc Ekker i Vance L. Trudeau. "Functional prediction and physiological characterization of a novel short trans-membrane protein 1 as a subunit of mitochondrial respiratory complexes". Physiological Genomics 44, nr 23 (1.12.2012): 1133–40. http://dx.doi.org/10.1152/physiolgenomics.00079.2012.

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Mitochondrial respiration is mediated by a set of multisubunit assemblies of proteins that are embedded in the mitochondrial inner membranes. Respiratory complexes do not only contain central catalytic subunits essential for the bioenergetic transformation, but also many short trans-membrane subunits (sTMs) that are implicated in the proper assembly of complexes. Defects in sTMs have been discovered in some human neurodegenerative diseases. Here we identify a new subunit that we named Stmp1 and have characterized its function using both computational and experimental approaches. Stmp1 is a short trans-membrane protein, and sequence/structure analysis revealed that it shares common features like the small size, presence of a single or two TM region, and a COOH-terminal charged region, as many typical sTMs of respiratory complexes. In situ hybridization and RT-PCR assays showed that the Stmp1 expression is ubiquitous throughout zebrafish embryogenesis. In adults, Stmp1 expression was highest in the brain compared with muscle and liver. In zebrafish larvae (3–5 days postfertilization), antisense morpholino oligonucleotide-mediated knockdown of the Stmp1 gene (Stmp1-MO) resulted in a series of mild morphological defects, including abnormal shape of head and jaw and cardiac edema. Larvae injected with the Stmp1-MO had negligible responses to touch stimuli. By ventilation frequency analysis we found that Stmp1-MO-injected zebrafish displayed a severe dysfunction of ventilatory activities when exposed to hypoxic conditions, suggesting a defective mitochondrial activity induced by the loss of Stmp1. Phylogenetic profiling of known respiratory sTMs compared with Stmp1 revealed that all defined sTMs from four respiratory complexes have restricted or variable phyletic distribution, indicating that they are products of evolutionary innovations to fulfill lineage-related functional requirements for respiratory complexes. Thus, being present in animals, filasterea, choanoflagellida, amoebozoa, and plants, Stmp1 may have evolved to confer a new or complementary regulation of respiratory activities.
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Thomsen, Helge Abildhauge, David L. Garrison i Carol Kosman. "Choanoflagellates (acanthoecidae, choanoflagellida) from the Weddell Sea, Antarctica, Taxonomy and community structure with particular emphasis on the ice biota; with preliminary remarks on choanoflagellates from Arctic sea ice (Northeast Water Polynya, Greenland)". Archiv für Protistenkunde 148, nr 1-2 (czerwiec 1997): 77–114. http://dx.doi.org/10.1016/s0003-9365(97)80038-3.

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IkÄvalko, Johanna, Helge Abildhauge Thomsen i Marina Carstens. "A Preliminary Study of NE Greenland Shallow Meltwater Ponds with Particular Emphasis on Loricate and Scale-covered Forms (Choanoflagellida, Chrysophyceae sensu lato, Synurophyceae, Heliozoea), Including the Descriptions of Epipyxis thamnoides spnovand Pseudokephyrion poculiforme spnov(Chrysophyceae)". Archiv für Protistenkunde 147, nr 1 (maj 1996): 29–42. http://dx.doi.org/10.1016/s0003-9365(96)80006-6.

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Lipps, Jere H., i James W. Valentine. "Late Neoproterozoic Metazoa: Weird, Wonderful and Ghostly". Paleontological Society Papers 10 (listopad 2004): 51–66. http://dx.doi.org/10.1017/s1089332600002333.

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The Late Neoproterozoic or Ediacaran biota contains a variety of enigmatic fossils of uncertain, but likely metazoan, affinities. The protistan group Choanoflagellata and Metazoa share a common ancestor predating the first fossils by perhaps 100's of millions of years. Sponge choanocytes closely resemble choanoflagellates, establishing a morphologic similarity as well. Fossils in the late Neoproterozoic may represent stem or early groups of cnidarians, while others resemble eumetazoans and bilaterians. These organisms occurred on all continents except Antarctica, and occupied four major habitats from prodeltaic to deep slope environments in each area. Their paleoecology was complex but similar to modern soft-bodied slope organisms. Ediacaran trophic structures were complex as well and included a wide variety of feeding types from detritovores, herbivores on microbial mats, filter-feeders, and predators. Ediacaran assemblages thus constitute the evolutionary and ecological precursors of later Phanerozoic and modern biotas.
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Thai Tran, Bai, i Binh Tran Thi Thanh. "The limits of subkingdom Protozoa in unicellular Eukarya". Journal of Science Natural Science 66, nr 4F (listopad 2021): 161–69. http://dx.doi.org/10.18173/2354-1059.2021-0079.

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According to the five-kingdom system, all unicellular eukaryotes are classified under the kingdom Protista, and multicellular eukaryotes contain only Animals, Plants, and Fungi. This classification is generally not accepted by zoologists. Many zoological textbooks still classify Animals into two large groups: Protozoa and Metazoa. However, the criterion for selecting Protozoa is the specific digestive system of heterotrophic nutrition for animals, thus, the range of Protozoa is often wide, includes many different, far related groups in unicellular eukaryotes. The entire eukaryotic phylogenetic tree (both unicellular and multicellular) built on molecular sequence comparisons of recent genetics indicates that only a few single-celled eukaryotic groups have phylogenetic relationship with the ancestor of multicellular eukaryotes in the animal kingdom. This situation forces a narrowing of the range of protozoan groups. According to principle (1) Kingdom taxa must include all groups of organisms that are monophyletic, i.e. have the same root in the phylogenetic tree of eukaryotes. This principle holds for all taxa above species. (2) Inheriting the traditional perception of considering Animals, Fungi and Plants (including unicellular and multicellular) as kingdom taxons. Protozoa includes 3 groups Choanoflagellata, Filasterea and Ichthyosporea. The article also updates the morphological, biological and taxonomic characteristics of these three groups.
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Książki na temat "Choanoflagellida"

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Karpov, S. A. (Sergeĭ Alekseevich), Monakov, A. V. (Andreĭ Vasilʹevich) i Institut biologii vnutrennikh vod (Akademii͡a nauk SSSR), red. Presnovodnye vorotnichkovye zhgutikonost͡sy. Leningrad: Izd-vo "Nauka" Leningradskoe otd-nie, 1985.

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Towlson, Phillipa Claire. Utilization of silica by Stephanoeca diplocostata Ellis (Choanoflagellida) and Synura petersenii Korsh (Synurophyceae). Birmingham: University of Birmingham, 1992.

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Części książek na temat "Choanoflagellida"

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Nielsen, Claus. "Prelude: Phylum Choanoflagellata". W Animal Evolution, 13–14. Oxford University Press, 2011. http://dx.doi.org/10.1093/acprof:oso/9780199606023.003.0003.

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