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Int J Syst Evol Microbiol 54 (2004), 77-83; DOI  10.1099/ijs.0.02717-0
© 2004 International Union of Microbiological Societies

Desulfatibacillum aliphaticivorans gen. nov., sp. nov., an n-alkane- and n-alkene-degrading, sulfate-reducing bacterium

Cristiana Cravo-Laureau1, Robert Matheron1, Jean-Luc Cayol2, Catherine Joulian2 and Agnès Hirschler-Réa1

1 Laboratoire de Microbiologie, IMEP CNRS UMR 6116, Faculté des Sciences et Techniques de Saint-Jérôme, case 452, 13397 Marseille cedex 20, France
2 Laboratoire de Microbiologie IRD, IFR-BAIM case 925, Universités de Provence et de la Méditerranée, 163 avenue de Luminy, 13288 Marseille cedex 9, France

Correspondence
Cristiana Cravo-Laureau
c.cravo-laureau{at}univ.u-3mrs.fr

A novel marine sulfate-reducing bacterium, strain CV2803T, which is able to oxidize aliphatic hydrocarbons, was isolated from a hydrocarbon-polluted marine sediment (Gulf of Fos, France). The cells were rod-shaped and slightly curved, measuring 0·6x2·2–5·5 µm. Strain CV2803T stained Gram-negative and was non-motile and non-spore-forming. Optimum growth occurred in the presence of 24 g NaCl l-1, at pH 7·5 and at a temperature between 28 and 35 °C. Strain CV2803T oxidized alkanes (from C13 to C18) and alkenes (from C7 to C23). The DNA G+C content was 41·4 mol%. Comparative sequence analyses of the 16S rRNA gene and dissimilatory sulfite reductase (dsrAB) gene and those of other sulfate-reducing bacteria, together with its phenotypic properties, indicated that strain CV2803T was a member of a distinct cluster that contained unnamed species. Therefore, strain CV2803T (=DSM 15576T=ATCC BAA-743T) is proposed as the type strain of a novel species in a new genus, Desulfatibacillum aliphaticivorans gen. nov., sp. nov.

The GenBank accession numbers for 16S rRNA gene sequence and two dissimilatory sulfite reductase gene sequences of strain CV2803T are respectively AY184360, AY215505 and AY215506.




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