TY - JOUR T1 - Acides organiques produits par une archaébactérie anaérobie hyperthermophile soufre-dépendante A1 - Guezennec,Jean A1 - Rimbault,A A1 - Godfroy,Anne A1 - Fromage,M A1 - Marec,F A1 - Rocchiocioli,F UR - https://archimer.ifremer.fr/doc/00099/21011/ KW - ARCHAEA KW - ORGANIC ACIDS KW - AMINO ACIDS KW - LABELED ISOTOPES N2 - The existence of deep-sea hydrothermal thermophilic archaebacteria raises interesting questions about their metabolism and metabolic products both in a natural environment and in a culture medium. Moreover, the use of these microorganisms as a potential source of molecules of biotechnological interest must be considered, in the light of the fact that metabolic produits can enhance the risk of microbially-induced corrosion. Organic acids formed by an anaerobic thermophilic sulphur-dependent archaebacterium were analysed as tert-butyldimethylsilyl derivatives by GC and GC/MS. Data indicated the presence in significant amounts of propanoic, 2-methyl propanoic, 3-(methylthio) propanoic, phenylacetic and 4-hydroxyphenylacetic acids. In addition, the use of stable-isotope labelled amino acids demonstrated specific pathways for 3-(methylthio) propanoic and phenylacetic acids. Y1 - 1994 PB - Gauthier-Villars JF - Oceanologica Acta SN - 0399-1784 VL - 17 IS - 1 SP - 55 EP - 61 ID - 21011 ER -