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Desulfotomaculum halophilum sp. nov., a halophilic sulfate-reducing bacterium isolated from oil production facilities

¹Laboratoire d‘Océanographie Biologique, Université Bordeaux 1, 2 rue du Professeur Jolyet, F-33120 Arcachon, France
²Sanofi Recherche, Centre de Labège, F-31676 Labège, France
³Faculty of Science and Technology, Griffith University, Nathan, Brisbane, Australia 4111
⁴Laboratoire de Microbiologie, Université des Sciences et Techniques de Saint-Jérôme, F-13397 Marseille cedex 20, France

Author for correspondence: P. Caumette. Tel: +33 5 56 22 39 01. Fax: +33 5 56 83 51 04.

ABSTRACT

A halophilic endospore-forming, sulfate-reducing bacterium was isolated from an oilfield brine in France. The strain, designated SEBR 3139, was composed of long, straight to curved rods. It grew in 1–14% NaCI with an optimum at 6%. On the basis of morphological, physiological and phylogenetical characteristics, strain SEBR 3139 should be classified in the genus Desulfotomaculum. However, it is sufficiently different from the hitherto described Desulfotomaculum species to be considered as a new species. Strain SEBR 3139^T(= DSM 11559^T) represents the first moderate halophilic species of the genus Desulfotomaculum. The name Desulfotomaculum halophilum sp. nov. is proposed.

Key Words: Desulfotomaculum halophilum • halophile • sulfate-reducing bacterium • oil production

The GenBank/EMBL accession number for the 16S rDNA sequence of strain SEBR 3139^Tis U88891.

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