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| Durand, Lucile; Roumagnac, Marie; Cueff-gauchard, Valerie; Jan, Cyrielle; Guri, Mathieu; Tessier, Claire; Haond, Marine; Crassous, Philippe; Zbinden, Magali; Arnaud-haond, Sophie; Cambon-bonavita, Marie-anne. |
| Rimicaris exoculata is a deep-sea hydrothermal vent shrimp which enlarged gill chamber houses a complex trophic epibiotic community. Its gut harbours an autochthonous and distinct microbial community. This species dominates hydrothermal ecosystems megafauna along the Mid-Atlantic Ridge, regardless of contrasted geochemical conditions prevailing in them. Here, the resident gut epibiont community at four contrasted hydrothermal vent sites (Rainbow/TAG/Logatchev/Ashadze) was analysed and compiled with previous data to evaluate the possible influence of site location, using 16S rRNA surveys and microscopic observations (TEM, SEM and FISH analyses). Filamentous epibionts inserted between the epithelial cells microvilli were observed on all examined samples.... |
| Tipo: Text |
Palavras-chave: Epibiont; Extreme environments; Network analyses; Phylogeography. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00288/39890/38443.pdf |
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| Zeppilli, Daniela; Leduc, Daniel; Fontanier, Christophe; Fontaneto, Diego; Fuchs, Sandra; Gooday, Andrew J.; Goineau, Aurelie; Ingels, Jeroen; Ivanenko, Viatcheslav N.; Kristensen, Reinhardt Mobjerg; Neves, Ricardo Cardoso; Sanchez, Nuria; Sandulli, Roberto; Sarrazin, Jozee; Sorensen, Martin V.; Tasiemski, Aurelie; Vanreusel, Ann; Autret, Marine; Bourdonnay, Louis; Claireaux, Marion; Coquille, Valerie; De Wever, Lisa; Rachel, Durand; Marchant, James; Toomey, Lola; Fernandes, David. |
| Extreme marine environments cover more than 50% of the Earth’s surface and offer many opportunities for investigating the biological responses and adaptations of organisms to stressful life conditions. Extreme marine environments are sometimes associated with ephemeral and unstable ecosystems, but can host abundant, often endemic and well-adapted meiofaunal species. In this review, we present an integrated view of the biodiversity, ecology and physiological responses of marine meiofauna inhabiting several extreme marine environments (mangroves, submarine caves, Polar ecosystems, hypersaline areas, hypoxic/anoxic environments, hydrothermal vents, cold seeps, carcasses/sunken woods, deep-sea canyons, deep hypersaline anoxic basins [DHABs] and hadal zones).... |
| Tipo: Text |
Palavras-chave: Extreme environments; Meiofauna; Mangroves; Submarine caves; Polar ecosystems; Melting ice; Hypersaline areas; Anoxic and hypoxic zones; Hydrothermal vents; Cold seeps; Carcasses and sunken woods; Deep sea; Submarine canyons; Deep hypersaline anoxic basins (DHABs); Hadal zones. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00410/52140/52851.pdf |
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| Cruaud, Perrine; Vigneron, Adrien; Pignet, Patricia; Caprais, Jean-claude; Lesongeur, Francoise; Toffin, Laurent; Godfroy, Anne; Cambon-bonavita, Marie-anne. |
| In the Guaymas Basin, the presence at a few tens of kilometers of cold seeps and hydrothermal vents coupled with comparable sedimentary settings and depths offer a unique opportunity to assess and compare the microbial community composition of these deep-sea ecosystems. The microbial diversity in sediments from three cold seep and two hydrothermal vent assemblages were investigated using high-throughput 16S rRNA-sequencing. Numerous bacterial and archaeal lineages were detected in both cold seep and hydrothermal vent sediments. Various potential organic matter degraders (e.g., Chloroflexi, Atribacteria, MBG-D) and methane and sulfur cycling related microorganisms (e.g., ANME and methanogenic lineages, sulfate-reducing lineages) were detected in both... |
| Tipo: Text |
Palavras-chave: Microbial diversity; Hydrothermal vents; Cold seeps; Ribotypes; Methane; Extreme environments. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00415/52640/53496.pdf |
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