Desulfosalsimonas propionicica gen. nov., sp. nov., a halophilic, sulfate-reducing member of the family Desulfobacteraceae isolated from a salt-lake sediment
Kjeldsen, Kasper Urup and Jakobsen, Trine Fredlund and Glastrup, Jens and Ingvorsen, Kjeld,, 60, 1060-1065 (2010),
doi = https://doi.org/10.1099/ijs.0.014746-0,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= A novel halophilic Gram-negative sulfate-reducing bacterium affiliated with the deltaproteobacterial family Desulfobacteraceae, strain PropAT, was isolated from the extreme hypersaline sediment of the northern arm of Great Salt Lake, Utah, USA. Comparative 16S rRNA gene sequence analysis showed that strain PropAT is the first cultured representative of a clade of phylotypes that have been retrieved from a range of geographically and ecologically distinct hypersaline environments. Strain PropAT shared ≤90 % 16S rRNA gene sequence identity with cultured strains within the family Desulfobacteraceae. Cells of strain PropAT were rod-shaped and sometimes motile. The strain required NaCl for growth and grew at salinities up to 200 g NaCl l−1 (optimum 60 g l−1). Growth was observed at 15–40 °C, optimum growth occurred at about 40 °C, while growth was absent at 10 and 45 °C. The pH range for growth was pH 6.0–8.3. Yeast extract (0.1 g l−1) was required for growth. C2–4 alcohols, C3–4 carboxylic acids, yeast extract and H2/acetate supported growth with sulfate as electron acceptor. Sulfate, thiosulfate and sulfite served as electron acceptors, but not elemental sulfur, nitrate or fumarate. The DNA G+C content of strain PropAT was 54.1 mol%. Based on the genotypic and physiological properties, we propose that strain PropAT represents a novel species within a novel genus, Desulfosalsimonas propionicica gen. nov., sp. nov. The type strain of Desulfosalsimonas propionicica is PropAT (=DSM 17721T =VKM B-2385T).,
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