Gam Z. B., Thioye A., Cayol J. L., Joseph Manon, Fauque G., Labat Marc. (2018). Characterization of Desulfovibrio salinus sp. nov., a slightly halophilic sulfate-reducing bacterium isolated from a saline lake in Tunisia. International Journal of Systematic and Evolutionary Microbiology, 68 (3), p. 715-720. ISSN 1466-5026.
Titre du document
Characterization of Desulfovibrio salinus sp. nov., a slightly halophilic sulfate-reducing bacterium isolated from a saline lake in Tunisia
Année de publication
2018
Auteurs
Gam Z. B., Thioye A., Cayol J. L., Joseph Manon, Fauque G., Labat Marc
Source
International Journal of Systematic and Evolutionary Microbiology, 2018,
68 (3), p. 715-720 ISSN 1466-5026
A novel slightly halophilic sulfate-reducing bacterium, designated strain P1BSR(T), was isolated from water of a saline lake in Tunisia. Strain P1BSR(T) had motile (single polar flagellum), Gram-negative, rod-shaped, non-spore-forming cells, occurring singly or in pairs. Strain P1BSR(T) grew at temperatures between 15 and 45 degrees C (optimum 40 degrees C), and in a pH range between 6 and 8.5 (optimum pH 6.7). The strain required NaCl for growth (1 % w/v), and tolerated high NaCl concentration (up to 12 % w/v) with an optimum of 3 % (w/v). Sulfate, thiosulfate and sulfite served as terminal electron acceptors, but not elemental sulfur, fumarate, nitrate and nitrite. Strain P1BSR(T) utilized lactate, pyruvate, formate, D-fructose and glycerol as carbon and energy sources. The main cellular fatty acid was C-16:0 (50.8 %). The genomic DNA G+C content was 47.7 mol%. Phylogenetic analysis of 16S rRNA gene sequence similarity indicated that strain P1BSR(T) was affiliated to the genus Desulfovibrio, with the type strains Desulfovibrio salexigens (96.51 %), Desulfovibrio zosterae (95.68 %), Desulfovibrio hydrothermalis (94.81 %) and Desulfovibrio ferrireducens (94.73 %) as its closest phylogenetic relatives. On the basis of genotypic, phenotypic and phylogenetic characteristics, it is proposed to assign strain P1BSR(T) to a novel species of the genus Desulfovibrio, Desulfovibrio salinus sp. nov. The type strain is P1BSR(T) (=DSM 101510(T)=JCM 31065(T)).
Plan de classement
Limnologie biologique / Océanographie biologique [034]
;
Biotechnologies [084]
Description Géographique
TUNISIE
Localisation
Fonds IRD [F B010073040]
Identifiant IRD
fdi:010073040
