| 论文题目: | Sphingomonas psychrolutea sp. nov., a psychrotolerant bacterium isolated from glacier ice |
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| 作者: | Liu Qing, Liu Hong-Can, Zhang Jian-Li, Zhou Yu-Guang*, and Xin Yu-Hua. |
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| 刊物名称: | Int J Syst Evol Microbiol |
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| 年份: | 2015 |
| 影响因子: | 2.403 |
| 论文下载: | 下载地址 |
| 摘要: | A Gram-stain-negative, rod-shaped, orange bacterium (MDB1-AT) was isolated from ice samples collected from Midui glacier in Tibet, Southwest China. Cells were aerobic and psychrotolerant (growth occured at 0-25 degrees C). The phylogenetic analysis based on 16S rRNA gene sequences showed that it was a member of genus Sphingomonas, with the most phylogenetically relatives Sphingomonas glacialis CGMCC 1.8957T (98.9 %). Q-10 was the predominant ubiquinone. C17:1omega6c and summed feature 8 (C18:1 omega6c and/or C18:1 omega7c) were the major cellular fatty acids. The predominant polar lipids contained 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 the data of polyphasic analysis, strain MDB1-AT represented a novel species of the genus Sphingomonas, for which the name Sphingomonas psychrolutea sp. nov. is proposed. The type strain is MDB1-AT (CGMCC 1.10106T= NBRC 109639T). |
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