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Registros recuperados: 4
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An abyssal mobilome: Viruses, plasmids and vesicles from deep-sea hydrothermal vents ArchiMer
Lossouarn, Julien; Dupont, Samuel; Gorlas, Aurore; Mercier, Coraline; Bienvenu, Nadege; Marguet, Evelyne; Forterre, Patrick; Geslin, Claire.
Mobile genetic elements (MGEs) such as viruses, plasmids, vesicles, gene transfer agents (GTAs), transposons and transpovirions, which collectively represent the mobilome, interact with cellular organisms from all three domains of life, including those thriving in the most extreme environments. While efforts have been made to better understand deep-sea vent microbial ecology, our knowledge of the mobilome associated with prokaryotes inhabiting deep-sea hydrothermal vents remains limited. Here we focus on the abyssal mobilome by reviewing accumulating data on viruses, plasmids and vesicles associated with thermophilic and hyperthermophilic Bacteria and Archaea present in deep-sea hydrothermal vents.
Tipo: Text Palavras-chave: Deep-sea hydrothermal vent; Bacteria; Archaea; (Hyper-)thermophiles; Mobilome.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00260/37145/36731.pdf
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Draft Genome Sequences of Two Marinitoga camini Isolates Producing Bacterioviruses ArchiMer
Mercier, Coraline; Lossouarn, Julien; Haverkamp, Thomas; Bienvenu, Nadège; Godfroy, Anne; Cueff-gauchard, Valerie; Geslin, Claire; Nesbo, Camilla.
Here, we present the draft genome sequences of two thermophilic Marinitoga strain members of the Thermotogales order, Marinitoga camini DV1155 and Marinitoga camini DV1197. These strains were isolated from deep-sea hydrothermal vents of the Mid-Atlantic Ridge.
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Ano: 2016 URL: https://archimer.ifremer.fr/doc/00357/46833/46708.pdf
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"Ménage à trois": a selfish genetic element uses a virus to propagate within Thermotogales ArchiMer
Lossouarn, Julien; Nesbo, Camilla L.; Mercier, Coraline; Zhaxybayeva, Olga; Johnson, Milo S.; Charchuck, Rhianna; Farasin, Julien; Bienvenu, Nadege; Baudoux, Anne-claire; Michoud, Gregoire; Jebbar, Mohamed; Geslin, Claire.
Prokaryotic viruses play a major role in the microbial ecology and evolution. However, the virosphere associated with deep-sea hydrothermal ecosystems remains largely unexplored. Numerous instances of lateral gene transfer have contributed to the complex and incongruent evolutionary history of Thermotogales, an order well represented in deep-sea hydrothermal vents. The presence of clustered regularly interspaced short palindromic repeats (CRISPR) loci has been reported in all Thermotogales genomes, suggesting that these bacteria have been exposed to viral infections that could have mediated gene exchange. In this study, we isolated and characterized the first virus infecting bacteria from the order Thermotogales, Marinitoga piezophila virus 1 (MPV1). The...
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Ano: 2015 URL: http://archimer.ifremer.fr/doc/00254/36483/36732.pdf
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Thermosipho spp. Immune System Differences Affect Variation in Genome Size and Geographical Distributions ArchiMer
Haverkamp, Thomas H. A.; Geslin, Claire; Lossouarn, Julien; Podosokorskaya, Olga A.; Kublanov, Ilya; Nesbo, Camilla L..
Thermosipho species inhabit thermal environments such as marine hydrothermal vents, petroleum reservoirs, and terrestrial hot springs. A 16S rRNA phylogeny of available Thermosipho spp. sequences suggested habitat specialists adapted to living in hydrothermal vents only, and habitat generalists inhabiting oil reservoirs, hydrothermal vents, and hotsprings. Comparative genomics of 15 Thermosipho genomes separated them into three distinct species with different habitat distributions: The widely distributed T. africanus and the more specialized, T. melanesiensis and T. affectus. Moreover, the species can be differentiated on the basis of genome size (GS), genome content, and immune system composition. For instance, the T. africanus genomes are largest and...
Tipo: Text Palavras-chave: Extremophiles; Hydrothermal vents; Mobile DNA; Speciation; Thermotogae; Vitamine B-12.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00478/58934/61503.pdf
Registros recuperados: 4
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