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| Lorion, Julien; Duperron, Sebastien; Gros, Olivier; Cruaud, Corinne; Samadi, Sarah. |
| Bathymodiolin mussels occur at hydrothermal vents and cold seeps, where they thrive thanks to symbiotic associations with chemotrophic bacteria. Closely related genera Idas and Adipicola are associated with organic falls, ecosystems that have been suggested as potential evolutionary 'stepping stones' in the colonization of deeper and more sulphide-rich environments. Such a scenario should result from specializations to given environments from species with larger ecological niches. This study provides molecular-based evidence for the existence of two mussel species found both on sunken wood and bones. Each species specifically harbours one bacterial phylotype corresponding to thioautotrophic bacteria related to other bathymodiolin symbionts. Phylogenetic... |
| Tipo: Text |
Palavras-chave: Idas; Adipicola; Molecular taxonomy; Organic falls; Symbiosis; Thioautotrophy. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00206/31680/30056.pdf |
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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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