<i>Dethiothermospora halolimnae</i> gen. nov., sp. nov., a novel moderately halophilic, thermotolerant, bacterium isolated from a brine lake.

ABSTRACT: A novel, strictly anaerobic, slightly alkaliphilic, halotolerant, peptide- and amino acid-utilizing bacterial strain, SD1^T, was isolated from a hypersaline lake in Western Australia. The strain stained Gram-negative and was a motile, spore-forming rod. The strain grew between 15 and 50 °C (optimum 40 °C), 1-15% w/v sodium chloride (optimum 5%) and pH 6.0-10.0 (optimum 9.0). Major fatty acids included anteiso-C15 : 0 (24.9%), C14 : 0 dimethyl acetyl (13.2%), anteiso-C15 : 0 dimethyl acetyl (11.5%) and iso-C15 : 0 (10.4%). The DNA G+C content was 30.3 mol%. The isolate did not grow using any tested sugars but grew well on arginine and glycine. It is capable of using elemental sulfur and thiosulfate as alternate electron acceptors, but not sulfide, sulfate, nitrate or nitrite. 16S

SUBMITTER: Fisher LA 

PROVIDER: S-EPMC12044194 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature