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Updated: Jul 3, 2026

Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution
Published on: December 30, 2021
Salinicoccus halodurans sp. nov., a moderate halophile from saline soil in China
Xiaowei Wang1, Yanfen Xue, Sanqing Yuan
1State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, 100101 Beijing, PR China.
Abstract:
A moderately halophilic, Gram-positive coccus, designated strain W24(T), was isolated from saline soil in Qinghai province, China. The isolate was able to grow at salinities of 0-24 % (w/v) NaCl (optimally at 8 %, w/v), at pH 5.5-9.0 (optimally at pH 7.5) and at 8-43 degrees C (optimally at 28 degrees C). The genomic DNA G+C content of strain W24(T) was 45.8 mol%. The predominant isoprenoid quinone was MK-6 and the cell wall contained lysine and glycine as diagnostic diamino acids. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol and an unidentified glycolipid. The major cellular fatty acids were iso-C(15 : 0), anteiso-C(15 : 0) and C(16 : 0). Based on 16S rRNA gene sequence analysis, strain W24(T) was found to be a member of the genus Salinicoccus and was related most closely to Salinicoccus hispanicus DSM 5352(T) (96.5 % sequence similarity). Based on data from the current polyphasic study, strain W24(T) is considered to represent a novel species of the genus Salinicoccus, for which the name Salinicoccus halodurans sp. nov. is proposed. The type strain is W24(T) (=CGMCC 1.6501(T)=DSM 19336(T)).
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