Bacillus loiseleuriae sp nov., isolated from rhizosphere soil from a loiseleuria plant

文献类型： 外文期刊

第一作者： Liu, Bo

作者： Liu, Bo;Liu, Guo-Hong;Zhu, Yu-Jing;Wang, Jie-Ping;Che, Jian-Mei;Chen, Qian-Qian;Chen, Zheng

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期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）

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收录情况： SCI

摘要： A Gram-stain-positive, rod-shaped, endospore-forming, aerobic bacterium, designated strain FJAT-27997(T), was isolated from the rhizosphere soil of a Loiseleuria plant collected from Sichuan province in China. Growth was observed aerobically between 20 and 35 degrees C (optimum 30 degrees C), between 0 and 3.0 % (w/v) NaCI (optimum at 0%) concentration and pH in the range 6.0-9.0 (optimum at pH 7.0). The cell-wall peptidoglycan contained meso-diaminopimelic acid and the major isoprenoid quinone was menaquinone MK-7. The main fatty acids were iso-C-15:0, anteiso-C-15:0, iso-C-14:0, C-16:0 and C-14:0. The main polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. Phylogenetic analyses based on 16S rRNA gene sequences showed that isolate FJAT-27997(T) was a member of the genus Bacillus and was related most closely to Bacillus simplex DSM 1321(T) (97.95% similarity), followed by Bacillushuizhouensis GSSO3(T) (97.9%). The average nucleotide identity value between strain FJAT-27997(T) and the most closely related species, B. simplex DSM 1321(T), was 71.60% (JSpecies), less than the previously proposed cut-off value of 96% for differentiating species within the genus. The in silico DNA-DNA hybridization values between strain FJAT-27997(T) and its most closely related species were <70%, again indicating they belong to different taxa. The main fatty acids were iso-C-15:0 and anteiso-C-15:0. The novel strain could be differentiated from other known Bacillus species on the basis of several phenotypic characters and fatty acid profiles. This taxononomic/genomic study revealed that strain FJAT-27997(T) represents a novel Bacillus species, for which the name Bacillus loiseleuriae sp. nov. (type strain FJAT-27997(T) =CCTCC AB 2015285(T)=DSM 101776(T)) is proposed.

分类号： Q

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