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Auswahl der wissenschaftlichen Literatur zum Thema „Alvinella“
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Zeitschriftenartikel zum Thema "Alvinella"
Tunnicliffe, Verena, Daniel Desbruyères, Didier Jollivet und Lucien Laubier. „Systematic and ecological characteristics of Paralvinella sulfincola Desbruyères and Laubier, a new polychaete (family Alvinellidae) from northeast Pacific hydrothermal vents“. Canadian Journal of Zoology 71, Nr. 2 (01.02.1993): 286–97. http://dx.doi.org/10.1139/z93-041.
Der volle Inhalt der QuelleAlayse-Danet, A. M., F. Gaill und D. Desbruyeres. „In situ Bicarbonate Uptake by Bacteria-Alvinella Associations“. Marine Ecology 7, Nr. 3 (September 1986): 233–40. http://dx.doi.org/10.1111/j.1439-0485.1986.tb00160.x.
Der volle Inhalt der QuelleJeanthon, Christian, und Daniel Prieur. „Susceptibility to Heavy Metals and Characterization of Heterotrophic Bacteria Isolated from Two Hydrothermal Vent Polychaete Annelids, Alvinella pompejana and Alvinella caudata“. Applied and Environmental Microbiology 56, Nr. 11 (1990): 3308–14. http://dx.doi.org/10.1128/aem.56.11.3308-3314.1990.
Der volle Inhalt der QuelleLee, Charles K., S. Craig Cary, Alison E. Murray und Roy M. Daniel. „Enzymic Approach to Eurythermalism of Alvinella pompejana and Its Episymbionts“. Applied and Environmental Microbiology 74, Nr. 3 (14.12.2007): 774–82. http://dx.doi.org/10.1128/aem.01960-07.
Der volle Inhalt der QuelleWijckmans, Eveline, Mieke Nys, Sarah Debaveye, Marijke Brams, Els Pardon, Katrien Willegems, Daniel Bertrand, Jan Steyaert, Rouslan Efremov und Chris Ulens. „Functional and Biochemical Characterization of Alvinella pompejana Cys-Loop Receptor Homologues“. PLOS ONE 11, Nr. 3 (21.03.2016): e0151183. http://dx.doi.org/10.1371/journal.pone.0151183.
Der volle Inhalt der QuelleWijckmans, Eveline, Mieke Nys, Sarah Debaveye, Marijke Brams, Els Pardon, Daniel Bertrand, Jan Steyaert und Chris Ulens. „Functional and Biochemical Characterization of Alvinella Pompejana Cys-Loop Receptor Homologues“. Biophysical Journal 110, Nr. 3 (Februar 2016): 602a—603a. http://dx.doi.org/10.1016/j.bpj.2015.11.3218.
Der volle Inhalt der QuelleMary, Jean, Hélène Rogniaux, Jean-François Rees und Franck Zal. „Response of Alvinella pompejana to variable oxygen stress: A proteomic approach“. PROTEOMICS 10, Nr. 12 (07.04.2010): 2250–58. http://dx.doi.org/10.1002/pmic.200900394.
Der volle Inhalt der QuelleTaylor, Craig D., Carl O. Wirsen und Françoise Gaill. „Rapid Microbial Production of Filamentous Sulfur Mats at Hydrothermal Vents“. Applied and Environmental Microbiology 65, Nr. 5 (01.05.1999): 2253–55. http://dx.doi.org/10.1128/aem.65.5.2253-2255.1999.
Der volle Inhalt der QuelleLe Bris, N., und F. Gaill. „How does the annelid Alvinella pompejana deal with an extreme hydrothermal environment?“ Reviews in Environmental Science and Bio/Technology 6, Nr. 1-3 (25.11.2006): 197–221. http://dx.doi.org/10.1007/s11157-006-9112-1.
Der volle Inhalt der QuelleGaill, F., und Y. Bouligand. „Supercoil of collagen fibrils in the integument of Alvinella, an abyssal annelid“. Tissue and Cell 19, Nr. 5 (Januar 1987): 625–42. http://dx.doi.org/10.1016/0040-8166(87)90070-x.
Der volle Inhalt der QuelleDissertationen zum Thema "Alvinella"
Pradillon, Florence. „Données sur les processus de reproduction et de développement précoce d' un eucaryote thermophile Alvinella pompejana“. Paris 6, 2002. http://www.theses.fr/2002PA066462.
Der volle Inhalt der QuelleZbinden, Magali. „Données sur les interactions biogéochimiques en milieu hydrothermal : l'exemple d'Alvinella pompejana“. Aix-Marseille 2, 2001. http://theses.univ-amu.fr.lama.univ-amu.fr/2001AIX20655.pdf.
Der volle Inhalt der QuelleAlvinella pompejana is a polychaetous annelid that inhabits deep-sea hydrothermal vent sites along the East Pacific Rise, where it colonizes the walls of actively venting high-temperature chimneys. In this environment, chaotic mixing of hydrothermal fluid and sea water causes abundant mineral precipitations. Extracellular matrix of these organisms, mostly the tube they secrete, are rapidely engulfed in mineral deposits. In situ biogeoassemblages, consisting in alvinellids, tubes and mineral deposits, were collected thank to a new collection device. Non conventional methods were developped for preparation and observation of heavily mineralised biological samples. Use of this method allows the observation of the mutual influence of mineral and biological phases. (1) Alvinella developped adaptations in response to the rapid mineralisation of its tube : high tube secretion rates permit a rapid migration rate along the chimney walls. (2) Presence of the biological communities on the chimney walls can locally modify the geochemistry. Marcasite crust is precipitated specifically under the tubes mass. Furthermore, the tubes occurrence create a partitioning of mineral precipitates. Whereas outer face of the tube is covered by large iron sulfure deposits, we always observed zinc sulfide nanocrystals within the tube wall. Close spatial relationship between these nanocrystals and microorganisms between tube layers leads to the hypothesis of a biologically-induced origin of the sulfides
Halaimia, Toumi Nassima. „Caractérisation et analyse fonctionnelle des éléments transposables de type mariner issus de deux espèces des sources hydrothermales océaniques (Bythograea thermydron et Alvinella caudata)“. Le Mans, 2006. http://cyberdoc.univ-lemans.fr/theses/2006/2006LEMA1023.pdf.
Der volle Inhalt der QuelleThe particularism of the deep-sea hydrothermal organisms led us to question us on their developed adaptive answers. For that, we chose to study mariner transposable elements which their impact on genetic variability was shown. They are segments of DNA able to move in the genome, they have a simple structure, a length of approximately 1300pb. They have a gene which codes the transposase which is responsible for the mobility of the element itself. This gene is flanked by reversed terminal repetitions; ITR. The transposase recognizes and binds ITRs specifically, cut the element and insert it in another genomic site. The transposase ensures all the stages of displacement. 29 mariner sequences were isolated and characterized in the genoms of the crab Bythograea thermydron and the worm Alvinella caudata. Their transposases are able to recognize and to bind to ITRs. They are also ready to generate cut
Halaimia, Toumi Nassima Laulier Marc. „Caractérisation et analyse fonctionnelle des éléments transposables de type mariner issus de deux espèces des sources hydrothermales océaniques (Bythograea thermydron et Alvinella caudata)“. [S.l.] : [s.n.], 2006. http://cyberdoc.univ-lemans.fr/theses/2006/2006LEMA1023.pdf.
Der volle Inhalt der QuelleGagnière, Nicolas. „Développement d’une suite logicielle pour l’analyse et l’annotation intégrative automatiques de transcrits et de protéines : application aux banques d’ADNc de l’annélide polychète Alvinella pompejana“. Strasbourg, 2009. http://www.theses.fr/2009STRA6160.
Der volle Inhalt der QuelleThis thesis work concerns high-throughput genomics, and more particularly Expressed Sequence Tag (EST) analysis. The project has led to the development of an EST analysis pipeline capable of managing a suite of analysis modules. The first phase of this pipeline includes pre-processing and assembly of the ESTs to improve their initial quality, and their subsequent translation into protein sequences using a combination of similarity and ab initio approaches. The last phase of the pipeline consists of an original integrative annotation of the proteins, based on their evolutionary context thanks to multiple alignments. The proteins are then mapped onto their functional networks. The generated results can be accessed by several dedicated Web querying and visualisation interfaces designed during this thesis. These developments were used in several studies of prokaryotic and eukaryotic cDNA libraries and proteins. Notably, they enabled the exploitation of 100,000 Alvinella pompejana sequences, a thermotolerant polychaete Annelid, endemic to hydrothermal vents. These comparative studies highlighted crucial genes implicated in Alvinella oxidative stress and hypoxia adaptation, as well as an enrichment in positively charged amino acids of proteins that could be involved in this worm’s thermotolerance. Finally, our work revealed the ancestral origin of several genes previously considered to be Deuterostome specific, thus modifying our vision of Metazoan evolution
Thomas-Bulle, Camille. „Influence du mode de spéciation sur l'architecture des génomes et la diversité des éléments transposables chez les bivalves et les annélides hydrothermaux“. Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS688.
Der volle Inhalt der QuelleSpeciation is an evolutionary process leading to the emergence of new species through the establishment ofreproductive barriers between populations. By studying and mapping the genes involved in speciation, weinvestigated if the architecture of synonym and non-synonym gene divergences could reflect the on-goingmode of speciation of two sets of hydrothermal species. For the polychaetes of the genus Alvinella (allopatry),the Equatorial barrier from the East Pacific Rise limiting gene flow between populations plays a role in the emergence of reproductive barriers reinforced by local adaptation related to the symbiotic interactions with the local microbial communities of the vents. 3 species of Atlantic deep-sea mussels of the genus Bathymodiolus live in environments of varying depths, fluid chemical composition and microbial communities. The selective pressures due to local adaptation were likely at the origin of the first genomic barriers countering gene flow.Isolation was also favored by spatial distance with local secondary contacts which in turn allowed adaptive introgressions. Transposable elements also impact the architecture of genomes. We studied LTR retrotransposons within the annelid and mollusc genomes. The 3 superfamilies follow distinct evolutionary dynamic strategies: Gypsy elements very diversified with numerous copies (Red Queen dynamics), Copia are rarer and dominated by 3 clades (Domino Days spreading model), BEL/Pao in intermediate position. If their role was probably negligible in the speciation in the Alvinella system (very few mobile elements) this is probably not true in the Bathymodiolus system as TEs make up for roughly 50% of their genomes
Papot, Claire. „Histoire évolutive et patrons de sélection d’un gène codant un peptide antimicrobien chez deux annélides extrémophiles : le ver côtier Capitella capitata et le ver hydrothermal Alvinella pompejana“. Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10161/document.
Der volle Inhalt der QuelleAntimicrobial peptides (AMP) are integral components of the innate immune system of most organisms in which they provide an early and a first line of defense against a wide range of microbial and microeukaryotic agents. They are also known to shape and control the symbiotic microflora. The aim of this thesis was to study the molecular evolution of two antimicrobial peptides encoding the genes: preproalvinellacin and preprocapitellacin that have been characterized from two annelids: the coastal species Capitella spp (Cc) and the hydrothermal species Alvinella pompejana (Ap). These precursors from which are matured the AMPs alvinellacin and capitellacin, display an original structure of a BRICHOS chaperon: a signal peptide, a propiece, a BRICHOS domain and a beta hairpin peptide (here the AMP). Results show that the same kind of mechanisms might co-occur between the two distinct annelid taxa to promote and maintain genetic diversity for both immune effectors in the precursor domains (duplication, recombination, positive selection, introgression). One major difference can be highlighted in the AMP region that is strictly monomorphic for the Ap species (purifiying selection) and is highly polymorphic in the Cc species. This can be due to the absolute need of farming a highly specialized epibiotic community for the hydrothermal worm despite highly fluctuating abiotic conditions whereas the coastal species of Capitella spp evolved in a more pathogenic environment in which the immune arsenal diversification should be an advantage in enhancing their defensive potential
Haddad, Michael Alexander. „Phylogenetic characterization of the epibiotic bacteria associated with the hydrothermal vent polychaete Alvinella pompejana“. Thesis, 1994. http://hdl.handle.net/1957/35177.
Der volle Inhalt der QuelleGraduation date: 1995
Bücher zum Thema "Alvinella"
Coelho, Eduardo. Carioca de 1971: A verdadeira história da vitória do Fluminense sobre a Selefogo alvinegra. Rio de Janeiro, RJ: Maquinária Editora, 2011.
Den vollen Inhalt der Quelle findenHaddad, Michael Alexander. Phylogenetic characterization of the epibiotic bacteria associated with the hydrothermal vent polychaete Alvinella pompejana. 1994.
Den vollen Inhalt der Quelle findenBuchteile zum Thema "Alvinella"
Le Bris, N., und F. Gaill. „How does the annelid Alvinella pompejana deal with an extreme hydrothermal environment?“ In Life in Extreme Environments, 315–39. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/978-1-4020-6285-8_20.
Der volle Inhalt der QuelleKonferenzberichte zum Thema "Alvinella"
Yohe, Laurel, und Drew Syverson. „Morphology of toxic metal distributions in biological soft tissue of deep-sea hydrothermal extremophile polychaete Alvinella pompejana“. In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.7908.
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