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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Defluviitoga tunisiensis gen. nov., sp. nov., a thermophilic bacterium isolated from a mesothermic and anaerobic whey digester
International Journal of Systematic and Evolutionary Microbiology, Volume 62, No. 6, Year 2012
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Description
Strain SulfLac1T, a thermophilic, anaerobic and slightly halophilic, rod- shaped bacterium with a sheath-like outer structure (toga), was isolated from a whey digester in Tunisia. The strain's nonmotile cells measured 3-30x1 μm and appeared singly, in pairs or as long chains. The novel strain reduced thiosulfate and elemental sulfur, but not sulfate or sulfite, into sulfide. It grew at 37-65 °C (optimum 55 °C), at pH 6.5-7.9 (optimum pH 6.9) and with 0.2-3% (w/v) NaCl (optimum 0.5 %). The G+C content of the strain's genomic DNA was 33.6 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SulfLac1Twas most closely related to Petrotoga mobilis (91.4% sequence similarity). Based on phenotypic, phylogenetic and chemotaxonomic evidence, strain SulfLac1Trepresents a novel species of a new genus within the order Thermotogales, for which the name Defluviitoga tunisiensis gen. nov., sp. nov. is proposed. The type strain of the type species is SulfLac1T(=DSM 23805T=JCM 17210T). © 2012 IUMS.
Authors & Co-Authors
Ben Hania, Wajdi Ben
France, Marseille
Aix Marseille Université
Tunisia, Tunis
University of Carthage, Institut National Des Sciences Appliquées et de Technologie
Godbane, Ramzi
France, Marseille
Aix Marseille Université
Tunisia, Tunis
University of Carthage, Institut National Des Sciences Appliquées et de Technologie
Postec, Anne
France, Marseille
Aix Marseille Université
Hamdi, Moktar
Tunisia, Tunis
University of Carthage, Institut National Des Sciences Appliquées et de Technologie
Ollivier, Bernard M.
France, Marseille
Aix Marseille Université
Fardeau, Marie Laure
France, Marseille
Aix Marseille Université
Statistics
Citations: 105
Authors: 6
Affiliations: 2
Identifiers
Doi:
10.1099/ijs.0.033720-0
ISSN:
14665026
Research Areas
Genetics And Genomics
Study Locations
Tunisia