Hamdi O., Ben Hania Wajdi, Postec A., Bartoli M., Hamdi M., Bouallagui H., Fauque G., Ollivier Bernard, Fardeau Marie-Laure. (2013). Isolation and characterization of Desulfocurvus thunnarius sp. nov., a sulfate-reducing bacterium isolated from an anaerobic sequencing batch reactor treating cooking wastewater. International Journal of Systematic and Evolutionary Microbiology, 63 (11), p. 4237-4242. ISSN 1466-5026.
Titre du document
Isolation and characterization of Desulfocurvus thunnarius sp. nov., a sulfate-reducing bacterium isolated from an anaerobic sequencing batch reactor treating cooking wastewater
Année de publication
2013
Auteurs
Hamdi O., Ben Hania Wajdi, Postec A., Bartoli M., Hamdi M., Bouallagui H., Fauque G., Ollivier Bernard, Fardeau Marie-Laure
Source
International Journal of Systematic and Evolutionary Microbiology, 2013,
63 (11), p. 4237-4242 ISSN 1466-5026
A novel anaerobic, chemo-organotrophic, sulfate-reducing bacterium, designated strain Olac 40(T), was isolated from a Tunisian wastewater digestor. Cells were curved, motile rods or vibrios (5.0-7.0x0.5 mu m). Strain Olac 40(T) grew at temperatures between 15 and 50 degrees C (optimum 40 degrees C), and between pH 5.0 and 9.0 (optimum pH 7.1). It did not require NaCl for growth but tolerated it up to 50 g l(-1) (optimum 2 g l(-1)). In the presence of sulfate or thiosulfate, strain Olac 40(T) used lactate, pyruvate and formate as energy sources. Growth was observed on H-2 only in the presence of acetate as carbon source. In the presence of sulfate or thiosulfate, the end products of lactate oxidation were acetate, sulfide and CO2. Sulfate, thiosulfate and sulfite were used as terminal electron acceptors, but not elemental sulfur, nitrate or nitrite. The genomic DNA G+C content of strain Olac 40(T) was 70 mol%. The profile of polar lipids consisted of phosphatidylglycerol, phosphatidylethanolamine, aminophospholipid and four phospholipids. The main fatty acids were C-16:0, anteiso-C-15:0 and iso-C-15:0. Phylogenetic analysis of the 16S rRNA gene sequence indicated that strain Olac 40(T) was affiliated with the family Desulfovibrionaceae within the class Deltaproteobacteria. On the basis of 16S rRNA gene sequence comparisons and physiological characteristics, strain Olac 40(T) is proposed to be assigned to a novel species of the genus Desulfocurvus, for which the name Desulfocurvus thunnarius is proposed. The type strain is Olac 40(T) (=DSM 26129(T)=JCM 18546(T)).
Plan de classement
Nutrition, alimentation [054]
;
Biotechnologies [084]
Description Géographique
TUNISIE
Localisation
Fonds IRD [F B010061436]
Identifiant IRD
fdi:010061436
