Relationship between the occurrence of filamentous bacteria on Bathymodiolus azoricus shell and the physiological and toxicological status of the vent mussel

Abstract : The edifice walls of the Eiffel Tower hydrothermal vent site (Mid-Atlantic Ridge, Lucky Strike vent field) are populated with dense communities of dual symbioses harboring vent mussel Bathymodiolus azoricus, some of which are covered by white filamentous mats belonging to sulfur-oxidizing bacteria. Mussels were collected in both the presence and absence of the filamentous bacteria. A sample of the filamentous bacteria was collected and water measurements of temperature, CH4 and H2S were recorded at the collection area. The whole soft tissues were analyzed for total lipid, carbohydrate and total protein. Metallothioneins and metals (Cu, Fe and Zn) levels were determined in the major organs. The results showed no significant physiological and toxicological evidence that emphasizes the influence of associated sulfur-oxidizing filamentous bacteria on B. azoricus mussel shells. However, B. azoricus mussel seems to be well adapted to the assorted physico-chemical characteristics from the surrounding environment since it is able to manage the constant fluctuation of physico-chemical compounds.
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Journal of Experimental Marine Biology and Ecology, Elsevier, 2009, 376 (1), pp.1-6. 〈10.1016/j.jembe.2009.05.001〉
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http://hal.univ-brest.fr/hal-00617016
Contributeur : Violaine Garguilo <>
Soumis le : jeudi 25 août 2011 - 14:41:53
Dernière modification le : jeudi 11 janvier 2018 - 06:16:39

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Ines Martins, Ana Colaço, Ricardo Serrao Santos, Françoise Lesongeur, Anne Godfroy, et al.. Relationship between the occurrence of filamentous bacteria on Bathymodiolus azoricus shell and the physiological and toxicological status of the vent mussel. Journal of Experimental Marine Biology and Ecology, Elsevier, 2009, 376 (1), pp.1-6. 〈10.1016/j.jembe.2009.05.001〉. 〈hal-00617016〉

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