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| Duperron, Sebastien; Laurent, Melina Cz; Gaill, Francoise; Gros, Olivier. |
| Six morphotypes of small mussels (Bivalvia: Mytilidae) were found attached to naturally sunken wood collected in the Bohol Sea (Philippines). These specimens are related to the large Bathymodiolus mussels that are found worldwide at cold seeps and hydrothermal vents. In these habitats, the mytilids harbour sulphur- and methane-oxidizing endosymbionts in their gills and depend on the energy and carbon provided by the symbionts. In this study, bacteria associated with the gills of wood-associated mussels are characterized using molecular and microscopic techniques. The existence of bacteria in the lateral zone of gill filaments in all specimens is demonstrated. Comparative analyses of 16S rRNA gene and adenosine 5'-phosphosulphate (APS) reductase gene... |
| Tipo: Text |
Palavras-chave: Sulphur-oxidizing bacteria; Bathymodiolus; Idas; Adipicola; Sunken woods; Bohol sea. |
| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00466/57808/60093.pdf |
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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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