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| Zbinden, Magali; Pailleret, Marie; Ravaux, Juliette; Gaudron, Sylvie M.; Hoyoux, Caroline; Lambourdiere, Josie; Waren, Anders; Lorion, Julien; Halary, Sebastien; Duperron, Sebastien. |
| Even though their occurrence was reported a long time ago, sunken wood ecosystems at the deep-sea floor have only recently received specific attention. Accumulations of wood fragments in the deep sea create niches for a diverse fauna, but the significance of the wood itself as a food source remains to be evaluated. Pectinodonta sp. is a patellogastropod that exclusively occurs on woody substrates, where individuals excavate deep depressions, and is thus a potential candidate for a wood-eating lifestyle. Several approaches were used on Pectinodonta sampled close to Tongoa island (Vanuatu) to investigate its dietary habits. Host carbon is most likely derived from the wood material based on stable isotopes analyses, and high cellulase activity was measured in... |
| Tipo: Text |
Palavras-chave: Sunken woods; Wood-feeding gastropod; Symbiosis; Cellulolytic activity. |
| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00206/31687/30070.pdf |
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| Lorion, Julien; Halary, Sebastien; Do Nasciment, Joana; Samadi, Sarah; Couloux, Arnaud; Duperron, Sebastien. |
| Small mytilids of the genus Ildas are related to the large mussels found worldwide at deep-sea hydrothermal vents and cold seeps. They are therefore keys to a better understanding of the colonization of vents and seeps by symbiont-bearing organisms, but still little is known about their biology. For this study, specimens of a mytilid referred to the genus Idas were collected from various substrates in a cold seep area near the Nile deep sea fan. Based on molecular and morphological data, all specimens are confirmed to belong to a single species of the genus Idas, which was previously shown to host six distinct bacterial symbionts. Its larval shell characteristics indicate a long planktonic phase, which could explain its close relationship to a mussel... |
| Tipo: Text |
Palavras-chave: Idas; Planktotrophy; Organic falls; Cold seeps; Symbiosis. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00133/24425/22436.pdf |
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| Bittner, Lucie; Halary, Sebastien; Payri, Claude; Cruaud, Corinne; De Reviers, Bruno; Lopez, Philippe; Bapteste, Eric. |
| Background: Improving knowledge of biodiversity will benefit conservation biology, enhance bioremediation studies, and could lead to new medical treatments. However there is no standard approach to estimate and to compare the diversity of different environments, or to study its past, and possibly, future evolution. Presentation of the hypothesis: We argue that there are two conditions for significant progress in the identification and quantification of biodiversity. First, integrative metagenomic studies - aiming at the simultaneous examination (or even better at the integration) of observations about the elements, functions and evolutionary processes captured by the massive sequencing of multiple markers - should be preferred over DNA barcoding projects... |
| Tipo: Text |
Palavras-chave: Microbial diversity; Species concept; Dna barcodes; Ecological perspective; Community; Functional analysis; Rhodophyta; Systematics; Fragments; Taxonomy. |
| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00202/31321/29733.pdf |
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| Jacquemot, Loic; Bettarel, Yvan; Monjol, Joanne; Corre, Erwan; Halary, Sebastien; Desnues, Christelle; Bouvier, Thierry; Ferrier-pages, Christine; Baudoux, Anne-claire. |
| Biological control using bacteriophages is a promising approach for mitigating the devastating effects of coral diseases. Several phages that infect Vibrio coralliilyticus, a widespread coral pathogen, have been isolated, suggesting that this bacterium is permissive to viral infection and is, therefore, a suitable candidate for treatment by phage therapy. In this study, we combined functional and genomic approaches to evaluate the therapeutic potential of BONAISHI, a novel V. coralliilyticus phage, which was isolated from the coral reef in Van Phong Bay (Vietnam). BONAISHI appears to be strictly lytic for several pathogenic strains of V. coralliilyticus and remains infectious over a broad range of environmental conditions. This candidate has an unusually... |
| Tipo: Text |
Palavras-chave: Phage therapy; Coral disease; Vibrio coralliilyticus; Viral genomics; Phage-host interactions. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00465/57717/74946.pdf |
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