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Archive ouverte | Comptes Rendus De L Academie Des Sciences Serie Iii-sciences De La Vie-life Sciences (0764-4469) (John Libbey Eurotext Ltd), 1995-03 , Vol. 318 , N. 3 , P. 395-402

Raguenes, Gerard | Meunier, Jr | Antoine, Elisabeth | Godfroy, Anne | Caprais, Jean-claude | Lesongeur, Francoise | Guezennec, Jean | Barbier, Georges

Edité par John Libbey Eurotext Ltd

During the MVT'90 US oceanographic cruise, various samples (pieces of hydrothermal chimneys, Pompei worms tubes) were collected from deep-sea hydrothermal vents of the East Pacific Rise. They led to the isolation of 125 thermophilic, heterotrophic, sulfur-reducing and anaerobic strains. The results indicated an acidophilic behaviour of the most thermophilic strains (97 degrees C). Taxonamic study of the 38 most thermophilic isolates revealed 2 sub-groups depending on isolation temperatures and G + C% contents of genoms. DNR/DNA hybridization data with previously described Archaea of the genera Thermococcus, Pyrococcus and Staphylothermus showed an important biodiversity.

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