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Your search keyword '"Cristiana Cravo-Laureau"' showing total 2 results
Start Over Author "Cristiana Cravo-Laureau" Publisher microbiology society
2 results on '"Cristiana Cravo-Laureau"'

1. Desulfatiferula olefinivorans gen. nov., sp. nov., a long-chain n-alkene-degrading, sulfate-reducing bacterium

Author

Cristiana Cravo-Laureau, Agnès Hirschler-Réa, Catherine Joulian, Cindy Labat, Robert Matheron, Institut pluridisciplinaire de recherche sur l'environnement et les matériaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Microbiologie et Biotechnologie des Environnements Chauds, Université de la Méditerranée - Aix-Marseille 2-Université de Provence - Aix-Marseille 1, and Institut Pluridisciplinaire de Recherche sur l'Environnement et les Matériaux (IPREM)

Subjects
DNA, Bacterial, Deltaproteobacteria, Stereochemistry, Molecular Sequence Data, Alkenes, DNA, Ribosomal, Waste Disposal, Fluid, Microbiology, 03 medical and health sciences, Phylogenetics, RNA, Ribosomal, 16S, Sulfate-reducing bacteria, Phylogeny, Ecology, Evolution, Behavior and Systematics, 030304 developmental biology, Desulfatiferula, 0303 health sciences, Sulfur-Reducing Bacteria, biology, Phylogenetic tree, 030306 microbiology, Sequence Analysis, DNA, General Medicine, biology.organism_classification, 16S ribosomal RNA, 6. Clean water, Bacterial Typing Techniques, Type species, Biodegradation, Environmental, Petroleum, Phenotype, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Water Microbiology, Bacteria
Abstract

A novel anaerobic, long-chain alkene-degrading, sulfate-reducing bacterium, strain LM2801T, was isolated from brackish sediment of a wastewater decantation facility of an oil refinery (Berre lagoon, France). Cells of strain LM2801T were Gram-negative, motile, slightly curved or vibrioid rods. Its optimum growth conditions were 30–36 °C, 6–10 g NaCl l−1 and pH 7.5. Strain LM2801T incompletely oxidized long-chain alkenes (from C14 to C23) and fatty acids (C14 to C24). The DNA G+C content was 45.5 mol%. Sequence analyses of the 16S rRNA and dsrAB genes indicated that the strain was a member of the family Desulfobacteraceae within the Deltaproteobacteria. This novel isolate possesses phenotypic and phylogenetic traits that do not allow its classification as a member of any previously described genus. Therefore, strain LM2801T is described as a member of a new genus, Desulfatiferula gen. nov., of which Desulfatiferula olefinivorans sp. nov. is the type species. The type strain of Desulfatiferula olefinivorans is LM2801T (=DSM 18843T =JCM 14469T).

Published
2007

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

Author

Catherine Joulian, Agnès Hirschler-Réa, Robert Matheron, Jean-Luc Cayol, Cristiana Cravo-Laureau, Institut pluridisciplinaire de recherche sur l'environnement et les matériaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS), Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Laboratoire de microbiologie de l'IRD, ESIL, Université de la Méditerranée - Aix-Marseille 2-Université de Provence - Aix-Marseille 1, Laboratoire de Microbiologie et Biotechnologie des Environnements Chauds, and Institut Pluridisciplinaire de Recherche sur l'Environnement et les Matériaux (IPREM)

Subjects
Deltaproteobacteria, Stereochemistry, Molecular Sequence Data, Alkenes, Biology, medicine.disease_cause, Microbiology, Desulfatibacillum aliphaticivorans, chemistry.chemical_compound, Alkanes, Gram-Negative Bacteria, Water Pollution, Chemical, medicine, Seawater, Sulfate, Phylogeny, Ecology, Evolution, Behavior and Systematics, Alkane, chemistry.chemical_classification, Strain (chemistry), Sulfates, Alkene, General Medicine, 16S ribosomal RNA, biology.organism_classification, Biodegradation, Environmental, chemistry, Inactivation, Metabolic, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Oxidation-Reduction, DNA, Bacteria
Abstract

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 0·6×2·2–5·5 μm. Strain CV2803Tstained 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 CV2803Toxidized alkanes (from C13to C18) and alkenes (from C7to 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 CV2803Twas 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 aliphaticivoransgen. nov., sp. nov.

Published
2004

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