Relevant bibliographies by topics / Spore

Academic literature on the topic 'Spore'

Author: Grafiati
Published: 4 June 2021
Last updated: 21 February 2023

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

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Spore.'

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.

Journal articles on the topic "Spore"

1

Yuniarti, Ating, Nasrullah Bai Arifin, Muhammad Fakhri, and Anik M. Hariati. "Spore production and sporulation efficacy of Bacillus subtilis under different source of manganese supplementation [Produksi Spora dan Efisiensi Sporulasi Bacillus subtilis dengan Suplementasi Mangan dari Sumber yang Berbeda]." Jurnal Ilmiah Perikanan dan Kelautan 11, no. 2 (October 25, 2019): 51. http://dx.doi.org/10.20473/jipk.v11i2.15250.

Full text
Abstract:
AbstractBacillus is a species widely used as a probiotic in the aquaculture industry. The Bacillus spores have more advantages than their vegetative ones, and an addition of minerals such as calcium, magnesium, and manganese can improve the spore production. The purpose of this study was to determine the effect of different sources of manganese on the production and sporulation efficacy of B. subtilis SB3. The sources of manganese used in this study were manganese chloride (MnCl2) and manganese sulfate (MnSO4) at the concentration of 10 mM. Media without manganese supplementation was used as a control. The results showed that there was a significant effect of different manganese sources on the spore production of B. subtilis SB3. The highest spore production was found in media with MnCl2 supplementation with the total spore of 8.77 x 107 spores. mL-1. However, spore production with MnSO4 supplementation was still higher (22.7%) compared to that without manganese supplementation. The decrease in spore production with MnSO4 supplementation was possible due to the sulfate inhibition. The high spore production in media with MnCl2 supplementation was also preceded by the high production of vegetative cells from B. subtilis SB3 (2.54 x 108 cells. mL-1). The results indicated that manganese could stimulate both vegetative cell growth and its spores. The highest sporulation efficacy (35%) was also achieved in media with MnCl2 supplementation. On the other hand, the germination rate of B. subtilis SB3 spores was not influenced by manganese supplementation.Abstrak Bacillus adalah species yang banyak digunakan sebagai probiotik pada industri akuakultur. Dalam bentuk spora, species ini lebih banyak mempunyai kelebihan dibandingkan dalam bentuk vegetatifnya dan peningkatan produksi sporanya dapat dilakukan dengan penambahan mineral seperti kalsium, magnesium dan mangan. Tujuan penelitian ini adalah untuk mengetahui pengaruh sumber mangan yang berbeda terhadap produksi dan efisiensi sporulasi B. subtilis SB3 indigenous akuatik. Sumber mangan yang dipakai dalam penelitian ini adalah mangan klorida (MnCl2) dan mangan sulfat (MnSO4) sebanyak 10 mM dan sebagai kontrol digunakan media tanpa suplementasi mangan. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang nyata penggunaan sumber mangan yang berbeda terhadap produksi spora. Produksi spora tertinggi didapatkan pada media dengan suplementasi MnCl2 sebanyak 8,77 x 107 spora. mL-1. Sedangkan produksi spora dengan suplementasi MnSO4 juga masih lebih tinggi (22,7%) dibandingkan tanpa suplementasi magan. Penurunan produksi spora pada media dengan penambahan mangan sulfat diduga karena adanya penghambatan oleh sulfat. Tingginya produksi spora pada media dengan suplementasi MnCl2 sebelumnya juga didahului dengan tingginya produksi sel vegetatif dari B. subtilis SB3 (2,54 x 108sel. mL-1). Hal ini menunjukkan bahwa mangan dapat menstimulasi baik pertumbuhan sel vegetatif dan sporanya. Efisiensi sporulasi tertinggi juga dicapai pada media dengan suplementasi MnCl2 sebesar 35%. Di sisi lain, kemampuan germinasi spora B. subtilis SB3 tercatat sama dan tidak dipengaruhi oleh suplementasi mangan.
APA, Harvard, Vancouver, ISO, and other styles
2

Burrows, Rhoda L., and Francis L. Pfleger. "Arbuscular mycorrhizal fungi respond to increasing plant diversity." Canadian Journal of Botany 80, no. 2 (February 1, 2002): 120–30. http://dx.doi.org/10.1139/b01-138.

Full text
Abstract:
The effect of plant diversity (1, 2, 8, or 16 species) on arbuscular mycorrhizal fungi (AMF) was assessed at the Cedar Creek Long-Term Ecological Research site at East Bethel, Minnesota, from 1997 to 1999. At each of the five samplings, AMF in 16-species plots produced from 30 to 150% more spores and from 40 to 70% greater spore volumes than AMF in one-species plots. Regressions of spore numbers and volumes with percent plant cover, plant diversity, and soil NO3 as independent variables suggest that midsummer plot soil NO3 was the best single predictor of AMF spore production in these plots. Plant diversity influenced spore volume in four samplings and spore numbers in the first three samplings. Plant cover was predictive of spore volume throughout the experiment but of spore number only in the first year. Sporulation by larger-spored AMF species (Gigaspora spp. and Scutellospora spp.) increased significantly with increasing plant diversity, while sporulation of the smaller-spored species varied in response to host diversity. Spore numbers of several AMF species were consistently negatively correlated and none positively correlated with midseason soil NO3 concentrations, demonstrating the adaptation of these AMF species to nitrogen-limited conditions.Key words: mycorrhiza, community, grassland, sporulation, nitrogen, specificity.
APA, Harvard, Vancouver, ISO, and other styles
3

Sofiyanti, Nery, and Putri Handayani Harahap. "INVENTARISASI DAN KAJIAN PALINOLOGI JENIS-JENIS TUMBUHAN PAKU (PTERODOFITA) EPIFIT DI KAWASAN UNIVERSITAS RIAU, PROVINSI RIAU." Jurnal Biologi Tropis 19, no. 2 (October 19, 2019): 214. http://dx.doi.org/10.29303/jbt.v19i2.1266.

Full text
Abstract:
Abstrak : Tumbuhan paku (Pteridofita) epifit banyak di jumpai di kawasan Universitas Riau. Karakteristik spora pada tumbuhn apaku memegang peranan penting dalam kajian taksonomi. Penelitian ini bertujuan untuk mengidentifikasi jenis-jenis pteridofita epifit di kawasan ini dan mengkarakterisasi sporanya. Metode pengambilan sampel dilakukan menggunakan metode eksplorasi. Setiap jenis yang dijumpai didokumentasikan, dibuat herbarium, dideskripsi dan diidentifikasi. Spora dikoleksi dari daun yang sudah dewasa dan dibuat preparat menggunakan metode asetolisis. Preparat spora diamati dan didokumentasikan menggunakan mikroskop digital. Data yang diperoleh kemudian disajikan dalam bentuk gambar dan tabel serta dianalisis secara deskriptif. Hasil inventarisasi paku epifit di kawasan Universitas Riau mengidentifikasi 18 jenis paku epifit, yang tergolong ke dalam 6 famili yaitu Aspleniaceae, Davalliaceae, Nephrolepidaceae, Polypodiaceae Pteridaceae and Thelypteridaceae. Namun kajian palinologi hanya dilakukan pada 11 jenis yang sudah menghasilkan spora. Hasil pengamatan spora menunjukan bahwa semua jenis paku epifit mempunyai tipe dasar spora monolete, berbentuk ginjal dan hanya mempunyai satu laesura pada bagian ventral. Ukuran spora yang dijumpai adalah besar dan sangat besar, dengan ornamentasi permukaan Lohpat, verukat berpapila verukat, tuberkulat, ekinat pendek dan ekinat panjang. Morfologi spora yang ditemukan pada penelitian ini menunjukan karakteristik yang berbeda pada setiap jenis. Namun masih perlu dilanjutkan pengamatan menggunakan Scanning Electron Microscopy untuk mendapatkan oramentasi lebih detilKata kunci : paku epifit, palinologi, spora, monolete, UNRI Abstract : Ephypitic ferns are commonly found in University of Riau area. Spore characteristics play important role in taxonomical words. This study aimed to identify ephypitic pteridophyte species from this area and characterize their spore. Samples were collected using exploration method, and were then documented, prepared for herbarium, described and identified. Spore grains were collected from mature leaves and prepared by using acetolysis method. The spores were then observed and documented using digital microscope. Data were presented in figures and tables and describtively analized. The inventory of ephypitic ferns from University of Riau area identified a total of 18 fern species belong to 6 families, i.e. Aspleniaceae, Davalliaceae, Nephrolepidaceae, Polypodiaceae, Pteridaceae and Thelypteridaceae. Palinologycal study had been carried out from 11 species that produced spore. We observed the basic spore type of examined ephypitic ferns, monolete, with reniform shape and one laesura at the ventral part. The size of spore observed were big and very big spore, with surface ornamentation Lohpate, papillous verucate, verucate, tuberculate,, short echinate and long echinate. Spore morphology observed in this study showed the characteristic among the examined species. The further study using Scanning Electron Microscopy is neccesary to obtain detail spore ornamentation.Keywords: ephypitic fern, palynology, spore, monolete, UNRI
APA, Harvard, Vancouver, ISO, and other styles
4

PEREIRA, CAMILLA M. R., LEONOR C. MAIA, IVÁN SÁNCHEZ-CASTRO, JAVIER PALENZUELA, DANIELLE K. A. SILVA, RADKA SUDOVÁ, ZUZANA SÝKOROVÁ, et al. "Acaulospora papillosa, a new mycorrhizal fungus from NE Brazil, and Acaulospora rugosa from Norway." Phytotaxa 260, no. 1 (May 9, 2016): 14. http://dx.doi.org/10.11646/phytotaxa.260.1.2.

Full text
Abstract:
A new arbuscular mycorrhizal species, Acaulospora papillosa, was isolated from the biological reserve ‘Saltinho’ within a coastal tropical Atlantic forest of the ‘Mata Atlântica’ biome in Pernambuco State of Northeastern Brazil. It was trapped and propagated as single species cultures on Zea mays. The spores are yellow white to light yellow to creamy, globose to subglobose, 69–100(–110) × 65–93(–101) µm. The spore surface is roughened as crowded with fine papillae, which are formed on the outermost, evanescent to semi-persistent spore wall layer. These papillae may disintegrate or completely disappear as the spores age and the layer becomes completely evanescent. Phylogenetically, the fungus clusters together with several small-spored Acaulospora species having smooth spore surfaces, such as A. delicata, A. longula, A. morrowiae and A. mellea. In the Acaulospora clade, A. papillosa is the third taxon known to have a roughened spore surface, in addition to A. dilatata and A. rugosa. The phylogenetic placement of A. rugosa is provided, together with colored illustrations of the spore morphology. The isolation of A. papillosa from such protected nature reserves as ‘Saltinho’ further supports the need to protect these areas and determine the biodiversity of beneficial microorganisms.
APA, Harvard, Vancouver, ISO, and other styles
5

Craven, S. E., and L. C. Blankenship. "Changes in the hydrophobic characteristics of Clostridium perfringens spores and spore coats by heat." Canadian Journal of Microbiology 33, no. 9 (September 1, 1987): 773–76. http://dx.doi.org/10.1139/m87-132.

Full text
Abstract:
The hydrophobic characteristics of Clostridium perfringens NCTC 8679 spores were demonstrated by adherence to toluene in a toluene–aqueous partition system. Spores and spore coat preparations were hydrophobic. Vegetative cells and spores extracted with a dithiothreitol – sodium dodecyl sulfate treatment known to remove spore coats were not hydrophobic. A heat activation treatment (75 °C for 20 min) which promotes more rapid spore germination increased the hydrophobicity of intact spores and decreased that of isolated spore coats. The hydrophobic changes were reversed by washing and stabilized by 0.5% glutaraldehyde. Heat-induced hydrophobic changes were observed in spore coats prepared from spores that were preheated and washed before rupturing in a buffer containing glutaraldehyde. These results suggest the occurrence of a heat-induced change in the spore coat (possibly in the conformation of a macromolecule) which was stable only within the architectural confines of the intact spore.
APA, Harvard, Vancouver, ISO, and other styles
6

Kauserud, Håvard, Einar Heegaard, Rune Halvorsen, Lynne Boddy, Klaus Høiland, and Nils Chr Stenseth. "Mushroom's spore size and time of fruiting are strongly related: is moisture important?" Biology Letters 7, no. 2 (October 20, 2010): 273–76. http://dx.doi.org/10.1098/rsbl.2010.0820.

Full text
Abstract:
Most basidiomycete fungi produce annual short-lived sexual fruit bodies from which billions of microscopic spores are spread into the air during a short time period. However, little is known about the selective forces that have resulted in some species fruiting early and others later in the fruiting season. This study of relationships between morphological and ecological characteristics, climate factors and time of fruiting are based upon thorough statistical analyses of 66 520 mapped records from Norway, representing 271 species of autumnal fruiting mushroom species. We found a strong relationship between spore size and time of fruiting; on average, a doubling of spore size (volume) corresponded to 3 days earlier fruiting. Small-spored species dominate in the oceanic parts of Norway, whereas large-spored species are typical of more continental parts. In separate analyses, significant relationships were observed between spore size and climate factors. We hypothesize that these relationships are owing to water balance optimization, driven by water storage in spores as a critical factor for successful germination of primary mycelia in the drier micro-environments found earlier in the fruiting season and/or in continental climates.
APA, Harvard, Vancouver, ISO, and other styles
7

Tu, Zhiwei, Wishwas R. Abhyankar, Bhagyashree N. Swarge, Nicole van der Wel, Gertjan Kramer, Stanley Brul, and Leo J. de Koning. "Artificial Sporulation Induction (ASI) by kinA Overexpression Affects the Proteomes and Properties of Bacillus subtilis Spores." International Journal of Molecular Sciences 21, no. 12 (June 17, 2020): 4315. http://dx.doi.org/10.3390/ijms21124315.

Full text
Abstract:
To facilitate more accurate spore proteomic analysis, the current study focuses on inducing homogeneous sporulation by overexpressing kinA and assesses the effect of synchronized sporulation initiation on spore resistance, structures, the germination behavior at single-spore level and the proteome. The results indicate that, in our set up, the sporulation by overexpressing kinA can generate a spore yield of 70% within 8 h. The procedure increases spore wet heat resistance and thickness of the spore coat and cortex layers, whilst delaying the time to spore phase-darkening and burst after addition of germinant. The proteome analysis reveals that the upregulated proteins in the kinA induced spores, compared to spores without kinA induction, as well as the ‘wildtype’ spores, are mostly involved in spore formation. The downregulated proteins mostly belong to the categories of coping with stress, carbon and nitrogen metabolism, as well as the regulation of sporulation. Thus, while kinA overexpression enhances synchronicity in sporulation initiation, it also has profound effects on the central equilibrium of spore formation and spore germination, through modulation of the spore molecular composition and stress resistance physiology.
APA, Harvard, Vancouver, ISO, and other styles
8

Raju, N. B., and D. D. Perkins. "Expression of meiotic drive elements Spore killer-2 and Spore killer-3 in asci of Neurospora tetrasperma." Genetics 129, no. 1 (September 1, 1991): 25–37. http://dx.doi.org/10.1093/genetics/129.1.25.

Full text
Abstract:
Abstract It was shown previously that when a chromosomal Spore killer factor is heterozygous in Neurospora species with eight-spored asci, the four sensitive ascospores in each ascus die and the four survivors are all killers. Sk-2K and Sk-3K are nonrecombining haplotypes that segregate with the centromere of linkage group III. No killing occurs when either one of these killers is homozygous, but each is sensitive to killing by the other in crosses of Sk-2K x Sk-3K. In the present study, Sk-2K and Sk-3K were transferred by recurrent backcrosses from the eight-spored species Neurospora crassa into Neurospora tetrasperma, a pseudohomothallic species which normally makes asci with four large spores, each heterokaryotic for mating type and for any other centromere-linked genes that are heterozygous in the cross. The action of Sk-2K and Sk-3K in N. tetrasperma is that predicted from their behavior in eight-spored species. A sensitive nucleus is protected from killing if it is enclosed in the same ascospore with a killer nucleus. Crosses of Sk-2K x Sk-2S, Sk-3K x Sk-3S, and Sk-sK x Sk-3K all produce four-spored asci that are wild type in appearance, with the ascospores heterokaryotic and viable. The Eight-spore gene E, which shows variable penetrance, was used to obtain N. tetrasperma asci in which two to eight spores are small and homokaryotic. When killer and sensitive alleles are segregating in the presence of E, only those ascospores that contain a killer allele survive. Half of the small ascospores are killed. In crosses of Sk-2K x Sk-3K (with E heterozygous), effectively all small ascospores are killed. The ability of N. tetrasperma to carry killer elements in cryptic condition suggests a possible role for Spore killers in the origin of pseudohomothallism, with adoption of the four-spored mode restoring ascospore viability of crosses in which killing would otherwise occur.
APA, Harvard, Vancouver, ISO, and other styles
9

Gangi, Victor J., Ira E. Leonard, Allison A. Rodriguez, and Aaron B. Margolin. "Evaluation of Materials as Bacterial Spore Carriers for Testing Disinfectants." Journal of AOAC INTERNATIONAL 80, no. 6 (November 1, 1997): 1361–67. http://dx.doi.org/10.1093/jaoac/80.6.1361.

Full text
Abstract:
Abstract Prototype objects made of steel, glass, and various polymers were evaluated in relation to currently used objects made of silk suture and porcelain for their use as bacterial spore carriers for testing the sporicidal activity of disinfectants. The carriers were inoculated with spores of Bacillus subtilis. Spore retention was determined by detachment from the carriers by sonication and rinsing. Inoculated carriers were exposed to 2.5N HCI and 2.5% glutaraldehyde solutions to determine the effect of carrier material on spore inactivation. Carriers with the highest and lowest spore retention were steel-silicone mix carriers (1.7 × 106 spores/carrier) and polyvinylchloride cylinders (3.8 × 105 spores/carrier), respectively. Spore adhesion to carrier objects was not directly proportional to carrier surface area. Spores on silk sutures, grooved steel, and Teflon carriers survived longest in HCI solution. Spores on Teflon, grooved stainless steel, and glass cylinders survived longest in glutaraldehyde solution. In chemical and spore adhesion tests, no significant statistical differences were found between novel carrier materials and current spore carrier materials. The methods used for evaluating carrier materials were reliable and repeatable.
APA, Harvard, Vancouver, ISO, and other styles
10

Fitriana, Yuyun, Radix Suharjo, I. Gede Swibawa, Purnomo ., Puji Lestari, and Eryka Merdiana. "INFLUENCE OF CULTURE MEDIUM ON THE SPORULATION AND VIABILITY OF ASPERGILLUS SPP. AND TALAROMYCES SPP. ENTOMOPATHOGENIC FUNGI." JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA 18, no. 1 (August 2, 2018): 12. http://dx.doi.org/10.23960/j.hptt.11812-22.

Full text
Abstract:
Influence of Culture Medium on the Sporulation and Viability of Aspergillus spp. and Talaromyces spp. Entomopathogenic Fungi. The purpose of this study was to determine the effect of three kinds of cultures media on the spore production and viability of Aspergillus spp. (AS1, 6, 7, 9) and Talaromyces spp. (AS2–5, 8, 10) entomopathogenic fungi. This study was arranged using Factorial-Completely Randomized Design (CRD) with 2 factors and 3 replications. The first factor was three kinds of cultures media (potato dextrose agar (PDA), corn meal agar (CMA), and sabouraud dextrose agar (SDA)) and the second one was isolates of Aspergillus spp. Or Talaromyces spp.. Data of spore production and spore viability were tested using ANOVA and if there was significantly difference, the data then further analyzed using Tukey‘s Honestly Significant Difference (HSD) test at 5% of significant level. The spore production of Aspergillus spp. were in the range of 0.58 - 14.27 x 108 spores mL-1 (PDA); 0.28 – 2.68 x 108 spores mL-1 (SDA) and 1.85 - 5.33 x 108 spores mL-1 (CMA). The highest spore production was achieved by AS1 isolate that was grown on PDA media. The spore produced by Talaromyces spp. were in the range of 2.15 – 28.62 x108 spores mL-1 (PDA); 0.28 – 29.43 x108 spores mL-1 (SDA); and 1.88 – 16.63 x108 spores mL-1 (CMA). The highest spore production was produced by AS8 isolate which were cultured on PDA. The spore viability among isolates of the two entomopathogenic fungi were not significantly different. The spore viability of Aspergillus spp. was in the range of 95.10 – 97.66% (PDA), 94.02 – 98.45% (SDA) and 92.86 – 98.20% (CMA). The spore viability of Talaromyces spp. was in the range of 95.83 – 100% (PDA), 85.83 – 100% (SDA), and 90.75 – 100% (CMA). Culture medium influenced spore production but not the spore viability. The best culture media used for spore production of both of the entomopathogenic fungi was PDA media.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Spore"

1

Heeg, Daniela. "Spore formation and spore germination of Clostridium difficile." Thesis, University of Nottingham, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594825.

Full text
Abstract:
Clostridium difficile is the major underlying cause of antibiotic-associated diarrhoea and poses a risk for healthcare systems worldwide. Endospores produced during sporulation are widely regarded to be the infectious agent of C. difficile associated diarrhoea. These spores are able to withstand a variety of antimicrobial agents and industrial cleaning products and are therefore able to reside on surfaces in healthcare settings for prolonged periods of lime. In order to cause disease in susceptible individuals, spores need to abjure dormancy and return to vegetative cell growth through germination. Sporulation and germination have been studied extensively in Bacillus spp. Knowledge about the sporulation and germination pathways in C. difficile, however, remains incomplete. Here, forward and reverse genetics methods were employed to analyse sporulation and germination phenotypes of C. dfficile. Using forward genetics, 19 mutants with potential sporulation and/or germination phenotypes were isolated, three of which were completely deficient for sporulation. In an attempt to explore the use of transposon suicide vectors, a protocol for the successful transformation of C. difficile was developed. A reverse genetic mutant in the germination specific lytic transglycosylase Slee created by ClosTron mutagenesis was used to study spore germination in vivo. This study is the first report of the use of a germination mutant in vivo. The sporulation characteristics of 52 clinical C. difficile isolates have been analysed indicating that a variation in the rate of sporulation is not associated with molecular type. The germination characteristics of 37 clinical C. difficile isolates were examined, indicating that different isolates exhibit varying germination characteristics in response to bile salts.
APA, Harvard, Vancouver, ISO, and other styles
2

Eke, Milton Adams. "Spore-dome actinomycetes." Thesis, University of Bradford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292687.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

PORTINHA, Inês Cunha. "Exploring the evolutionary link between biofilms and spores formation in spore-formers." Master's thesis, Instituto de Higiene e Medicina Tropical, 2015. http://hdl.handle.net/10362/19323.

Full text
Abstract:
Bacteria are often thought as single cell organisms, however they can develop into morphologically complex multicellular communities composed of different subpopulations of specialized cell types. Biofilm is an example, in which bacteria organize for protection from harmful conditions in the host and to create nutrient-rich areas. In the last years biofilm have been show to comprise an important aspect of microbial persistence in the human gut. Endospore-formers, although thought not to be major constituents of the microbiota in the human intestine, cause several intestinal diseases, usually associated with antibiotic use. Whether these bacteria persist in the intestine in biofilms or as endospores is not totally elucidated since both, biofilms and endospores, are able to resist to antimicrobial agents. Most likely sporulation and biofilm formation are tightly linked processes. For some endosporeformers, spore differentiation is induced by a sub-population of cells within the biofilm. In this work we tackled the link between bacterial biofilms and endosporulation in Bacillus subtilis. We showed that endospores produced in biofilms have higher resistance to UV radiation. We revealed that a gene, remA, conserved among endosporeformers and essential for biofilm formation is expressed during sporulation. remA is expressed in the forespore soon after asymmetric division and in the mother cell after engulfment completion. GerE represses remA expression in the mother cell at late stages of sporulation. Consequently, we found components of the biofilm matrix, TasA and BslA, on the coat of endospores produced in biofilms. We suggest that components of the biofilm matrix may be part of mature endospores. We hypothesize that some of the structural proteins that confer integrity to the matrix biofilm, as TasA, may have a role as a scaffold for the assembly of the endospore surface layers.
A percepção instalada é a de que as bactérias são organismos unicelulares. No entanto, estes organismos são capazes de se organizarem em comunidades multicelulares complexas compostas de subpopulações de células diferenciadas. Os biofilmes são um exemplo deste tipo de organização. Os biofilmes conferem protecção contra as condições desfavoráveis encontradas no hospedeiro, ao mesmo tempo que criam nichos ricos em nutrientes facilitando a implantação da população. Nos últimos anos foi demonstrado que a persistência microbiana no trato gastrointestinal humano se deve em larga medida à formação de biofilmes. Algumas bactérias que podem ser encontradas no trato gastrointestinal humano são ainda capazes de diferenciar um tipo celular altamente resistente a insultos químicos e físicos, o esporo. Nestes casos, não é claro se são os biofilmes ou os endoesporos os principais responsáveis pela persistência destes organismos, já que ambos são resistentes aos antibióticos. Neste trabalho exploramos a ligação genética entre a formação de biofilmes e a esporulação em Bacillus subtilis. Mostramos que os endoesporos produzidos em biofilmes exibem maior resistência aos UV. Mostramos que um gene, remA, conservado em bactérias formadoras de endoesporos e essencial para a formação de biofilmes é expresso durante a esporulação. remA é expresso no pré-esporo após a divisão assimétrica e na célula mãe após o envolvimento do pré-esporo. GerE reprime a expressão de remA na célula mãe em estádios tardios de desenvolvimento. Consequentemente, encontramos componentes da matriz do biofilme no manto de endoesporos maduros. Algumas das proteínas estruturais que conferem integridade à matriz do biofilme, como TasA, poderão servir como base para a montagem das camadas superficiais do esporo.
APA, Harvard, Vancouver, ISO, and other styles
4

Swiecki, Melissa K. "Bacillus anthracis spore-host interactions." Thesis, Birmingham, Ala. : University of Alabama at Birmingham, 2007. http://www.mhsl.uab.edu/dt/2007p/swiecki.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Chen, Yan. "Characterization of Bacillus Spore Membrane Proteomes and Investigation of Their Roles in the Spore Germination Process." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/64934.

Full text
Abstract:
Components of the bacterial spore germination apparatus are crucial for survival and for initiation of infection by some pathogens. While some components of the germination apparatus are well conserved in spore-forming species, such as the spoVA operon, each species may possess a different and possibly unique germinant recognition mechanism. The significance of several individual proteins in the germination process has been characterized. However, the mechanisms of how these proteins perform their functions and the network connecting these proteins in the complete germination process are still a mystery. In this study, we characterized a Bacillus subtilis superdormant spore population and investigated the abundance of 11 germination-related proteins. The relative quantities of these proteins in dormant, germinating and superdormant spores suggested that variation in the levels of proteins, other than germinant receptor proteins may result in superdormancy. Specifically, variation in the abundance of the GerD lipoprotein may contribute to heterogeneity of spore germination rates. Spore membrane proteomes of Bacillus anthracis and B. subtilis were characterized to generate a candidate protein list that can be further investigated. Proteins that were not previously known to be spore-associated were identified, and many of these proteins shared great similarity in both Bacillus species. A significant number of these proteins are implicated in functions that play major roles in spore formation and germination, such as amino acid or inorganic ion transport and protein fate determination. By analyzing the in vivo and in vitro activity of HtrC, we proved that the protease is responsible for YpeB proteolytic processing at specific sites during germination. However, without HtrC present in the spore, other proteases appear to degrade YpeB at a reduced rate. The activity of purified HtrC in vitro was stimulated by a relatively high concentration of Mn2+ or Ca2+ ions, but the mechanism behind the stimulation is not clear. We also demonstrated that YpeB and SleB, in the absence of their partner protein, were degraded by unknown proteases other than HtrC during spore formation. Identification and characterization of these unknown proteases would be a future direction for revealing the roles of proteases in spore germination.
Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
6

Hemsley, Alan Richard. "The ultrastructure of fossil spore exines." Thesis, Royal Holloway, University of London, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493795.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Sangal, Abhishek. "STABILITY OF SPORE-BASED SENSING SYSTEMS." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/4.

Full text
Abstract:
The full exploitation of bacterial whole-cell biosensing systems in field applications requires the survival of bacterial cells and long term-preservation of their sensing ability during transportation and on-site storage of such analytical systems. Specifically, there is a need for rapid, simple and inexpensive biosensing systems for monitoring human health and the environment in remote areas which often suffer from harsh atmospheric conditions and inadequate commercial distribution and storage facilities. Our laboratory has previously reported the successful use of bacterial spores as vehicles for the long-term preservation and storage of whole-cell biosensing systems at room temperature. In the present research, we have accomplished a year-long study to investigate the effect of extreme climatic conditions on the stability of spores-based whole-cell biosensing systems. The spores were stored in laboratory conditions that simulated those found in real harsh environments and germination ability and analytical performance of the spore-based sensing systems upon storage in such conditions was monitored. Our results proved that the intrinsic resistance of spores to harsh environmental conditions helped maintain the integrity of the sensor bacteria. The revived active cells actually retained their analytical performance during the course of the twelve-month storage study.
APA, Harvard, Vancouver, ISO, and other styles
8

Foster, S. J. "Biochemistry of Bacillus megaterium spore germination." Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384466.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Cai, Wen. "Production and applications of spore microcapsules." Thesis, University of York, 2014. http://etheses.whiterose.ac.uk/5896/.

Full text
Abstract:
This thesis involves the preparation of exine shells derived from spores. The exines shells provide a ready source of microcapsules of uniform shape and monodispersed size in the region of 4 to 50 mm. The objective of the research was to fill the exine shells with various functional materials, and to examine qualitatively their bulk properties. Thus, the main production techniques and applications of sporopollenin microcapsules were extensively reviewed, with the objective of shortening the production process in order to develop commercial isolation techniques for sporopollenin exines. The conventional base and acid treatment was simplified and the microcapsules produced by this method were investigated detailed in order to evaluate the yield and quality of the exines. In order to demonstrate the utility of this procedure attempts were made to further simplify by shorter reaction time and limit chemicals applied. The overall result achieved was higher quality and useable exines, produced in a shorter time under less extreme conditions. The filling of exine microcapsules was studies for a range of materials including dyes and magnetic particles. It was found that, contrary to published data, it was possible to efficiently fill the microcapsules with an absorbate using a large volume of solvent. Dyes that were encapsulated enabled the demonstration of colour change through changes in pH and also temperature. Multicomponents system were also achieved which allowed the demonstration of multifunctionality such as colour and magnetic properties. The use of microcapsules in a chromatography or capture/release vehicle was also demonstrated.
APA, Harvard, Vancouver, ISO, and other styles
10

Jayaraman, Padmavathy. "Analysis of Bacillus subtilis 1604 spore germination." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317752.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Spore"

1

Nickels, Thom. Spore. Herndon, VA: StarBooks Press, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Cody, Goodfellow, ed. Spore. New York: Dorchester Publishing, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Copyright Paperback Collection (Library of Congress), ed. Spore. New York: Bantam Books, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Knight, David. Spore: Galactic adventures. Roseville, CA: Prima Games, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

La Spore: Roman. Paris: Table ronde, 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Driks, Adam, and Patrick Eichenberger, eds. The Bacterial Spore. Washington, DC, USA: ASM Press, 2016. http://dx.doi.org/10.1128/9781555819323.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Tamaki, Mariko. Tomb Raider: Spore. Milwaukie, OR: Dark Horse Comics, 2016.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

undifferentiated, David Knight. Spore: Galactic adventures. Roseville, CA: Prima Games, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wexler, Jerome. From spore to spore: Ferns and how they grow. New York: Dodd, Mead, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Anderson, Lucia, and Jerome Wexler. From spore to spore: Ferns and how they grow. New York: Dodd, Mead, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Spore"

1

Deacon, Jim. "Fungal Spores, Spore Dormancy, and Spore Dispersal." In Fungal Biology, 184–212. Malden, MA USA: Blackwell Publishing Ltd., 2013. http://dx.doi.org/10.1002/9781118685068.ch10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Nicholson, Wayne L., and Ralf Moeller. "Spore." In Encyclopedia of Astrobiology, 1565–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_1494.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gooch, Jan W. "Spore." In Encyclopedic Dictionary of Polymers, 692. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11051.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Nicholson, Wayne L., and Ralf Moeller. "Spore." In Encyclopedia of Astrobiology, 2331–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_1494.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Heppner, John B., David B. Richman, Steven E. Naranjo, Dale Habeck, Christopher Asaro, Jean-Luc Boevé, Johann Baumgärtner, et al. "Spore." In Encyclopedia of Entomology, 3519. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_4344.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Gooch, Jan W. "Spore." In Encyclopedic Dictionary of Polymers, 925. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_14849.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Nicholson, Wayne L., and Ralf Moeller. "Spore." In Encyclopedia of Astrobiology, 1–4. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_1494-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Saharan, Govind Singh, Prithwi Raj Verma, Prabhu Dayal Meena, and Arvind Kumar. "Spore Germination." In White Rust of Crucifers: Biology, Ecology and Management, 95–98. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1792-3_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gooch, Jan W. "Spore Coat." In Encyclopedic Dictionary of Polymers, 925. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_14850.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Moir, Anne, and Gareth Cooper. "Spore Germination." In The Bacterial Spore, 217–36. Washington, DC, USA: ASM Press, 2016. http://dx.doi.org/10.1128/9781555819323.ch11.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Spore"

1

Camesano, Terri A., Paola A. Pinzo´n-Arango, and Ramanathan Nagarajan. "Quantifying the Nanomechanical Properties of Bacillus Anthracis and Implications for Spore Killing." In ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology. ASMEDC, 2010. http://dx.doi.org/10.1115/nemb2010-13032.

Full text
Abstract:
Atomic force microscopy (AFM) was used to study the changes in the nanomechanical properties of the surface of Bacillus anthracis spores during germination. The Hertz model of continuum mechanics of contact was used to evaluate the Young’s or tensile elastic modulus of the spores before and after germination by applying the model to load-indentation curves obtained during force cycles. The highest elastic modulus was obtained with dormant spores, with average elasticity values of 197 ± 81 MPa. Fully vegetative spores had the lowest elasticity values. The elasticity decreased when spores were incubated with either L-alanine or inosine, and the decrease was greatest when both of these germinants were used in combination. We also found that as the spore elasticity values increasd, the indentation depth of the AFM probe into the surface increased, with vegetative B. anthracis cells having elasticity depths of up to 246.2 nm. We have shown that spore nanomechanical properties change during germination, and depend on the type of germinant that is used. Weakening of the spore cell wall may help explain why germinating cells are much more susceptible to anti-sporal agents. The study of elasticity of spores may be a valuable tool in the development of antibiotics or anti-sporal treatments.
APA, Harvard, Vancouver, ISO, and other styles
2

Easterly, Douglas, and Matt Kenyon. "Spore 1.1." In ACM SIGGRAPH 2005 Emerging technologies. New York, New York, USA: ACM Press, 2005. http://dx.doi.org/10.1145/1187297.1187316.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Moskowitz, Dan, Shalin Shodhan, and Michael Twardos. "Spore API." In SIGGRAPH 2009: Talks. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1597990.1598052.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bolt, Nate, and Tony Tulathimutte. "Spore player research outtakes." In the 27th international conference extended abstracts. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1520340.1520530.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Spencer, David, Nicole Bauer, Jessica Juneau, Allison Willingham, Amit Mandalia, Jenny Kelly, and Justin McClellan. "SPORE Entry, Descent and Landing." In 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2012. http://dx.doi.org/10.2514/6.2012-214.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

alrajhi, Khazna. "Biodiversity of Arbuscular Mycorrhizal Fungi in Plant Roots and Rhizosphere Soil from different arid locations of Qatar." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2021. http://dx.doi.org/10.29117/quarfe.2021.0060.

Full text
Abstract:
Recently more attention or interest has been developed towards the role of Arbuscular Mycorrhizal Fungi (AMF) in plant growth. Qatar, which is a part of the Arabian Gulf region, is mostly arid with hot and dry climatic conditions. The current research aims to investigate the Occurrence, species composition and abundance of AMF in Qatar, for which rhizosphere soil samples and roots of 16 plants belonging to 12 families from eight locations were collected. The AMF from different samples were identified based on the sequencing of the PCR product of the amplified conserved ITS region. The results showed that the AMF infection rate varies with location and plant species. Tamarix aphylla recorded the highest AMF infection rate (100%), followed by Blepharis ciliaris (98%) and Sporobolus ioclados (92%). AMF spore counts per 100g of soil ranged from 29.3 spores in Blepharis ciliaris to 643 spores /100g in Fagonia indica. The spore counts per location is variable and the range was 29.3 to 643/100g soil, however, no correlation has been detected between root colonization rate and spore counts. While all AMF identified at species levels were reported in other regions this research will be the first to investigate the AMF biodiversity from Qatar. However, new species are still expected since some were identified only at higher taxonomic levels. Claroideoglomus drummondii and Rhizophagus irregularis were the most widespread species while Claroideoglomus claroideum and Diversispora aurantia were the less present. This study provides comprehensive biological data about taxonomy, distribution and prevalence of AMF in Qatar soil, which opens new research towards developing its future applications for environmental conservation and sustainable agriculture.
APA, Harvard, Vancouver, ISO, and other styles
7

Cohen, D. A., C. S. Wang, J. A. Nolde, D. D. Lofgreen, and L. A. Coldren. "A monolithic evanescent field spore detector." In Integrated Photonics Research. Washington, D.C.: OSA, 2004. http://dx.doi.org/10.1364/ipr.2004.ithb3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Xing Qiu, Yin Tung Lee, and Pun To Yung. "A bacterial spore model of pulsed electric fields on spore morphology change revealed by simulation and SEM." In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2014. http://dx.doi.org/10.1109/embc.2014.6945195.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

LEUSCHNER, R. G. K., A. C. WEAVER, D. P. FERDINANDO, A. DARKE, and P. J. LILLFORD. "PARTICLE SIZE ANALYSIS OF BACILLUS SPORE SUSPENSIONS." In Proceedings of the Fifth Royal Society–Unilever Indo-UK Forum in Materials Science and Engineering. A CO-PUBLICATION OF IMPERIAL COLLEGE PRESS AND THE ROYAL SOCIETY, 2000. http://dx.doi.org/10.1142/9781848160163_0011.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Siricharoen, Punnarai, and Usa Humphries. "Automated Spore Counting using Morphology and Shape." In ICBBT'19: 2019 11th International Conference on Bioinformatics and Biomedical Technology. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3340074.3340085.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Spore"

1

Branda, Steven, Todd W. Lane, Victoria A. VanderNoot, Sara P. Gaucher, and Amanda S. Jokerst. Rapid onsite assessment of spore viability. Office of Scientific and Technical Information (OSTI), December 2005. http://dx.doi.org/10.2172/876524.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

S. Earl Kang, Jr., S. Earl Kang, Jr. Regulation of Spore Dormancy in Pathogenic Fungi. Experiment, November 2016. http://dx.doi.org/10.18258/8345.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Dickman, Martin B., and Oded Yarden. Role of Phosphorylation in Fungal Spore Germination. United States Department of Agriculture, August 1993. http://dx.doi.org/10.32747/1993.7568761.bard.

Full text
Abstract:
Spore germination is a common and fundamental event in fungal development and in many instances an essential phase of fungal infection and dissemination. Spore germination is also critical for hyperparasites to function as biocontrol agents as well as in fermentation proceses. Our common objective is to understand the mechanisms which regulated spore germination and identify factors involved in pathogenicity related prepenetration development. Our approach is to exploit the overall similarity among filamentous fungi using both a plant pathogen (Colletotricum trifolii) and a model system that is genetically sophisticated (Neurospora crassa). The simulataneous use of two organisms has the advantage of the available tools in Neurospora to rapidly advance the functional analysis of genes involved in spore germination and development of an economically important fungal phytopathogen. Towards this we have isolated a protein kinase gene from C. trifolii (TB3) that is maximally expressed during the first hour of conidial germination and prior to any visible gene tube formation. Based on sequence similarities with other organisms, this gene is likely to be involved in the proliferative response in the fungus. In addition, TB3 was able to functionally complement a N. crassa mutant (COT-1). Pharmacological studies indicated the importance of calmodulin in both germination and appressorium differentiation. Using an antisense vector from N. crassa, direct inhibition of calmodulin results in prevention of differentiation as well as pathogenicity. Both cAMP dependent protein kinase (PKA) and protein kinase C (PKC) like genes have been cloned from C. trifolii. Biochemical inhibition of PKA prevents germination; biochemical inhibitors of PKC prevents appressorium differentiation. In order to analyze reversible phosphorylation as a regulatory mechanism, some ser.thr dephosphorylative events have also been analyzed. Type 2A and Type 2B (calcineurin) phosphatases have been identified and structurally and functionally analyzed in N. crassa during this project. Both phosphatases are essential for hyphal growth and maintenance of proper hyphal architecture. In addition, a first novel-type (PPT/PP5-like) ser/thr phosphatase has been identified in a filamentous fungus. The highly collaborative project has improved our understanding of a fundamental process in fungi, and has identified targets which can be used to develop new approaches for control of fungal plant pathogens as well as improve the performance of beneficial fungi in the field and in industry. In addition, the feasibility of molecular technology transfer in comparative mycology has been demonstrated.
APA, Harvard, Vancouver, ISO, and other styles
4

Branda, Steven S., Todd W. Lane, Victoria A. VanderNoot, and Amanda S. Jokerst. Small acid soluble proteins for rapid spore identification. Office of Scientific and Technical Information (OSTI), December 2006. http://dx.doi.org/10.2172/984135.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Timberlake, W. E. Fifth international fungus spore conference. [Abstracts]: Final technical report. Office of Scientific and Technical Information (OSTI), April 1993. http://dx.doi.org/10.2172/10149084.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Williams, David D., Charles L. Turnbough, and Jr. Surface Layer Protein EA1 is Not a Component of Bacillus anthracis Spores but is a Persistent Contaminant in Spore Preparations. Fort Belvoir, VA: Defense Technical Information Center, October 2003. http://dx.doi.org/10.21236/ada424232.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Aronson, Arthur I. Function of Bacterial Spore Coat Polypeptides in Structure, Resistance and Germination. Fort Belvoir, VA: Defense Technical Information Center, December 1990. http://dx.doi.org/10.21236/ada232217.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Spiegel, Yitzhak, Michael McClure, Itzhak Kahane, and B. M. Zuckerman. Characterization of the Phytophagous Nematode Surface Coat to Provide New Strategies for Biocontrol. United States Department of Agriculture, November 1995. http://dx.doi.org/10.32747/1995.7613015.bard.

Full text
Abstract:
Chemical composition and biological role of the surface coat (SC) of the root-knot nematodes, Meloidogyne spp. are described. SC proteins of M. incognita race 3 infective juveniles (J2) were characterized by electrophoresis and western blotting of extracts from radioiodine and biotin-labelled nematodes. J2 labelled with radioiodine and biotin released 125I and biotin-labelled molecules into water after 20 hours incubation, indicating that SC proteins may be loosely attached to the nematode. Antiserum to the principal protein reacted with the surface of live J2 and with surface proteins previously separated by electrophoresis. Human red blood cells (HRBC) adhered to J2 of several tylenchid nematodes over the entire nematode body. HRBC adhered also to nylon fibers coated with SC extracted from M. javanica J2; binding was Ca++/Mg++ dependent, and decreased when the nylon fibers were coated with bovine serum albumin, or pre-incubated with fucose and mannose. These experiments support a working hypothesis that RBC adhesion involves carbohydrate moieties of HRBC and carbohydrate-recognition domain(s) (CRD) distributed on the nematode surface. To our knowledge, this is the first report of a surface CRD i the phylum Nematoda. Gold-conjugated lectins and neoglycoproteins combined with silver enhancement have been used for the detection of carbohydrates and CRD, respectively, on the SC of M. javanica J2. Biotin reagents were used to trace surface proteins, specifically, on live J2. The labile and transitory nature of the SC was demonstrated by the dynamics of HRBC adherence to detergent-treated J2, J2 at different ages or fresh-hatched J2 held at various temperatures. SC recovery was demonstrated also by a SDS-PAGE profile. Monoclonal antibodies developed to a cuticular protein of M. incognita J2 gave a slight, but significant reduction in attachment of Pasteuria penetrans spores. Spore attachment as affected by several enzymes was inconsistent: alcian blue, which specifically blocks sulfyl groups, had no afffect on spore attachment. Treatment with cationized ferritin alone or catonized ferritin following monoclonal antibody caused significant decreases in spore attachment. Those results suggest a role in attachment by negatively charged groups.
APA, Harvard, Vancouver, ISO, and other styles
9

McIntyre, D. J. Pollen and spore flora of an eocene forest, eastern Axel Heiberg Island, N.W.T. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/131949.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Cote, C. K., C. A. Rossi, A. S. Kang, P. R. Morrow, J. S. Lee, and S. L. Welkos. The Detection of Protective Antigen (PA) Associated with Spores of Bacillus Anthracis and the Effects of Anti-PA Antibodies on Spore Germination and Macrophage Interactions. Fort Belvoir, VA: Defense Technical Information Center, April 2005. http://dx.doi.org/10.21236/ada435638.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Spore' for particular source types:
Journal articles Dissertations / Theses Books
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!

To the bibliography