期刊
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
卷 65, 期 -, 页码 2955-2959出版社
MICROBIOLOGY SOC
DOI: 10.1099/ijs.0.000362
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资金
- National Natural Science Foundation of China (NSFC) [31070001]
A Gram-stain-negative, rod-shaped, orange bacterium (strain MDB1-A(T)) was isolated from ice samples collected from Midui glacier in Tibet, south-west China. Cells were aerobic and psychrotolerant (growth occurred at 0-25 degrees C). Phylogenetic analysis based on 16S rRNA gene sequences showed that it was a member of the genus Sphingomonas, with its closest relative being Sphingomonas glacialis C16y(T) (98.9 % similarity). Q-10 was the predominant ubiquinone. C-17:1 omega 6c and summed feature 8 (C-18: 1 omega 6c and/or C-18 :1 omega 7C) were the major cellular fatty acids. The predominant polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and sphingoglycolipid. The polyamines detected were sym-homospermidine, spermidine and spermine. The G+C content of the genomic DNA was 63.6 %. Based on data from this polyphasic analysis, strain MDB1-A(T) represents a novel species of the genus Sphingomonas, for which the name Sphingomonas psychrolutea sp. nov. is proposed. The type strain is MDB1-A(T) (=CGMCC 1.10106(T)=NBRC 109639(T)).
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