1. <italic>Halorubrum depositum</italic> sp. nov., a Novel Halophilic Archaeon Isolated from a Salt Deposit.
- Author
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Chen, Shaoxing, Sun, Siqi, Xu, Yao, Lv, Jinting, Chen, Linan, and Liu, Liu
- Subjects
SALT deposits ,RIBOSOMAL RNA ,NUCLEOTIDE sequence ,SALT mining ,PLEOMORPHIC fungi - Abstract
A non-motile, pleomorphic rod-shaped or oval, red-pigmented (nearly scarlet), extremely halophilic archaeon, strain Y78
T , was isolated from a salt deposit of Yunnan salt mine, China. Analysis of the 16S rRNA gene sequence showed that it was phylogenetically related to species of the genusHalorubrum , with a close relationship toHalorubrum rutilum YJ-18-S1T (98.6%),Halorubrum yunnanense Q85T (98.3%), andHalorubrum lipolyticum 9-3T (98.1%). The temperature, NaCl, and pH ranges for growth were 25-50 °C, 12-30% (w/v), and 6.5-9.0, respectively. Mg2+ was required for growth. The polar lipids of strain Y78T were phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester, phosphatidylglycerol sulfate, and a sulfated diglycosyl diether. The DNA G+C content was 66.6 mol%. DNA-DNA hybridization values between strain Y78T and two closely related species of the genusHalorubrum were far below 70%. Based on the data presented in this study, strain Y78T represents a novel species for which the nameHalorubrum depositum sp. nov. is proposed; the type strain is Y78T (= CGMCC 1.15456T = JCM 31272T ). [ABSTRACT FROM AUTHOR]- Published
- 2018
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