Hansschlegelia beijingensis sp nov., an aerobic, pink-pigmented, facultatively methylotrophic bacterium isolated from watermelon rhizosphere soil
文献类型： 外文期刊
作者： Zou, Xiao-lin 1 ; Li, Xiu-ai 1 ; Wang, Xu-Ming 1 ; Chen, Qiang 2 ; Gao, Miao 4 ; Qiu, Tian-lei 1 ; Sun, Jian-guang; Ga 1 ;
作者机构： 1.Beijing Acad Agr & Forestry, Beijing Agrobiotechnol Res Ctr, Beijing Municipal Key Lab Agr Gene Resources & Bi, Beijing 100097, Peoples R China
2.Sichuan Agr Univ, Coll Resources & Environm Sci, Dept Microbiol, Yaan 625014, Peoples R China
3.Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
4.Chinese Acad Agr Sci, Minist Agr, Key La
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 ）
ISSN： 1466-5026
年卷期： 2013 年 63 卷
页码：
收录情况： SCI
摘要： A novel Gram-stain-negative, aerobic, rod-shaped strain designated PG04(T)-was isolated from the rhizosphere of watermelon plants cultivated in Beijing, China. A polyphasic taxonomic study was performed on the new isolate. On the basis of 16S rRNA gene sequence similarity studies, isolate PG04(T) belonged clearly to the genus Hansschlegelia and was most closely related to Hansschlegelia zhihuaiae (97.3 % similarity to the type strain). The predominant respiratory quinone was ubiquinone 10 (Q-10) and the polar lipid profile was composed of the major lipids diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and phosphatidylcholine. The major fatty acids were C-18 : 1 omega 7c (41.3 %), C-19 : 0 cyclo omega 8c (30.6%) and C-16 (:) (0) (19.1%). The G + C content of the DNA was about 64.4 mol%. DNA DNA hybridization experiments showed 34.4% relatedness between strain PG04(T) and H. zhihuaiae DSM 18984(T). The results of physiological and biochemical tests and differences in fatty acid profiles allowed clear phenotypic differentiation of strain PG04(T) from the most closely related species in the genus, H. zhihuaiae. Strain PG04(T) therefore represents a novel species within the genus Hansschlegelia, for which the name Hansschlegelia beijingensis sp. nov. is proposed, with the type strain PG04(T)(=DSM 25481(T)=ACCC 05759(T)).
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