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Lentibacillus populi sp nov., a moderately halophilic, endophytic bacterium isolated from a poplar tree, and emended description of the genus Lentibacillus

文献类型： 外文期刊

作者： Sun, Pengbo 1 ; Gao, Jun-lian 2 ; Mao, Xiao-jie 3 ; Zhao, Xing-hua 2 ; Sun, Jian-guang 3 ; Lu, Mengzhu 1 ;

作者机构： 1.Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China

2.Beijing Acad Agr & Forestry, Beijing Municipal Key Lab Agr Gene Resources & Bi, Beijing Agrobiotechnol Res Ctr, Beijing 100097, Peoples R China

3.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Microbial Resources, Beijing 100081, Peoples R China

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-staining-positive, moderately halophilic, aerobic, endospore-forming, rod-shaped bacterial strain, designated WD4L-1(T) was isolated from surface-sterilized stem tissue of a poplar tree planted in the Wudalianchi National Geopark of Heilongjiang province, PR China. This novel isolate grew in the presence of 015% (w/v) NaCl, at pH 6.0-9.0 and 15-50 degrees C; optimum growth was observed with 7-8% (w/v) NaCl, at pH 7.0 and 30 C. The 16S rRNA gene sequence analysis indicated that the strain WD4L-1(T) belonged to the genus Lentibacillus, and was most closely related to Lentibacillus garicola SL-MJ1(T) with a sequence similarity of 96.1%. The DNA G+C content of strain WD4L-1(T) was determined to be 36.9 mol%. The respiratory quinone was identified as menaquinone-7 (MK-7) and the major lipids were diphosphatidylglycerol and phosphatidylglycerol and one unidentified phospholipid. The major fatty acids of strain WD4L-1(T). were anteiso-C-15:0, iso-C-15:0 and anteiso-C-17 : 0. The results of the physiological and biochemical tests and the minor differences in the fatty acid profiles allowed a clear phenotypic differentiation of strain WD4L-1(T) from the closely related Lentibacillus garicola JCM 30131(T). Thus, strain WD4L-1(T) represents a novel species of the genus Lentibacillus, for which the name Lentibacillus populi sp. nov. is proposed. The type strain is WD4L-1(T) (=CGMCC 1.15454(T)=DSM 101738(T)). An emended description of the genus Lentibacillus is also provided.

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