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Desulfatibacillum alkenivorans sp. nov., a novel n-alkene-degrading, sulfate-reducing bacterium, and emended description of the genus Desulfatibacillum

Abstract : An alkene-degrading, sulfate-reducing bacterium, strain PF2803T, was isolated from oil-polluted sediments (Fos Harbour, France). The cells were found to be Gram-negative, non-sporulating, non-motile and to have a slightly curved rod shape. Optimum growth occurred at 1 % (w/v) NaCl, pH 6.8 and 28-30 degrees C. Strain PF2803T oxidized alkenes (from C8 to C23). The G + C content of the genomic DNA was 57.8 mol% (HPLC). On the basis of 16S rRNA gene sequence analyses, strain PF2803T belongs to the family 'Desulfobacteraceae' in the class 'Deltaproteobacteria', with Desulfatibacillum aliphaticivorans as its closest relative (99.6 % identity). Comparative sequence analyses of the dissimilatory sulfite reductase (dsrAB) gene supported the affiliation of strain PF2803T to the genus Desulfatibacillum. DNA-DNA hybridization with its closest taxon demonstrated 48.4 % similarity. On the basis of the results of physiological and genetic analyses, strain PF2803T is identified as a novel species of the genus Desulfatibacillum, for which the name Desulfatibacillum alkenivorans sp. nov. is proposed. The type strain is PF2803T (= DSM 16219T = ATCC BAA-924T).
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https://hal.archives-ouvertes.fr/hal-00976686
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Submitted on : Thursday, April 10, 2014 - 11:29:38 AM
Last modification on : Tuesday, February 15, 2022 - 3:43:30 AM

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Cristiana Cravo-Laureau, Robert Matheron, Catherine Julian, Jean-Luc Cayol, Agnès Hirschler-Réa. Desulfatibacillum alkenivorans sp. nov., a novel n-alkene-degrading, sulfate-reducing bacterium, and emended description of the genus Desulfatibacillum. International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, 2004, 54, pp.1639-42. ⟨10.1099/ijs.0.63104-0⟩. ⟨hal-00976686⟩

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