| 论文题目: | Belliella aquatica sp. nov., isolated from a saline lake |
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| 作者: | Zhong Zhi-Ping Liu Ying, Hou Ting-Ting, Zhou Yu-Guang, Liu Hong-Can, Liu Zhi-Pei*. |
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| 刊物名称: | Int J Syst Evol Microbiol |
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| 年份: | 2015 |
| 影响因子: | 2.632 |
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| 摘要: | A Gram-staining-negative bacterium, strain TS-T86T, was isolated from Lake Tuosu, a saline lake (salinity 5.4 %, w/w) in Qaidam basin, China. Its taxonomic position was determined by using a polyphasic approach. Strain TS-T86T was strictly heterotrophic and aerobic, catalase- and oxidase-positive. Cells were non-spore-forming, non-motile rods, 0.4-0.6 microm wide and 1.2-2.3 microm long. Growth was observed in the presence of 0-9.0 % (w/v) NaCl (optimum, 2.0 %), and at 4-35 degrees C (optimum, 25 degrees C) and pH 7.0-10.5 (optimum, pH 8.5-9.0). Strain TS-T86T contained MK-7 as predominant respiratory quinone. The major fatty acids (>10 %) were iso-C15:1 G, iso-C15:0, iso-C17:1omega9c, iso-C17:0 3-OH, and C16:1omega7c and/or C16:1omega6c. The polar lipids consisted of phosphatidylethanolamine (PE), an unknown phosphlipid (PL), six unidentified aminolipids and two uncharacterized lipids. The DNA G+C content was 35 mol % (Tm). Phylogenetic trees based on 16S rRNA gene sequences showed that strain TS-T86T was associated with the genus Belliella, and showed highest sequence similarity to Belliella baltica BA134T (98.5 %), then to Belliella kenyensis No.164T (95.7 %) and Belliella pelovolcani CC-SAL-25T (95.3 %). DNA-DNA relatedness of strain TS-T86T to Belliella baltica DSM 15883T was 32 +/- 3 %. It is concluded that strain TS-T86T represents a novel species of the genus Belliella, for which the name Belliella aquatica sp. nov. is proposed. The type strain is TS-T86T (=CGMCC 1.12479T=JCM 19468T). |
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