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- Sala cibi gen. nov., sp. nov., an extremely halophilic archaeon isolated from solar salt
- Hye Seon Song , Juseok Kim , Yeon Bee Kim , Se Hee Lee , Tae Woong Whon , Seong Woon Roh
- J. Microbiol. 2022;60(9):899-904. Published online July 14, 2022
- DOI: https://doi.org/10.1007/s12275-022-2137-5
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- 7 Web of Science
- 8 Crossref
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Abstract
- Two novel halophilic archaeal strains, CBA1133T and CBA- 1134, were isolated from solar salt in South Korea. The 16S rRNA gene sequences of the isolates were identical to each other and were closely related to the genera Natronomonas (92.3–93.5%), Salinirubellus (92.2%), Halomarina (91.3– 92.0%), and Haloglomus (91.4%). The isolated strains were coccoid, Gram-stain-negative, aerobic, oxidase-positive, and catalase-negative. Growth occurred under temperatures of 25–50°C (optimum, 45°C), NaCl levels of 10–30% (optimum, 15%), pH levels of 6.0–8.5 (optimum, 7.0), and MgCl2 concentrations of 0–500 mM (optimum, 100 mM). Digital DNADNA hybridization values between the strains and related genera ranged from 18.3% to 22.7%. The major polar lipids of the strains were phosphatidyl glycerol, phosphatidyl glycerol phosphate methyl ester, and phosphatidyl glycerol sulfate. Genomic, phenotypic, physiological, and biochemical analyses of the isolates revealed that they represent a novel genus and species in the family Halobacteriaceae. The type strain is CBA1133T (= KACC 22148T = JCM 34265T), for which the name Sala cibi gen. nov., sp. nov. is proposed.
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Citations
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