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Pseudonocardia sichuanensis sp nov., a novel endophytic actinomycete isolated from the root of Jatropha curcas L.

文献类型： 外文期刊

作者： Qin, Sheng 1 ; Xing, Ke 1 ; Fei, Shi-Min 4 ; Lin, Qiang 4 ; Chen, Xiu-Min 4 ; Cao, Cheng-Liang 1 ; Sun, Yong 1 ; Wang, Yu 1 ;

作者机构： 1.Xuzhou Normal Univ, Key Lab Biotechnol Med Plant Jiangsu Prov, Sch Life Sci, Xuzhou 221116, Jiangsu, Peoples R China

2.Yunnan Univ, Key Lab Microbial Resources, Minist Educ, Kunming 650091, Yunnan, Peoples R China

3.Yunnan Univ, Lab Conservat & Utilizat Bioresources, Yunnan Inst Microbiol, Kunming 650091, Yunnan, Peoples R China

4.Sichuan Acad Forestry, Chengdu 610081, Sichuan, Peoples R China

5.Xinjiang Acad Agr Sci, Xinj

关键词： Pseudonocardia sichuanensis sp nov.;Polyphasic taxonomy;16S rRNA

期刊名称：ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY （ 影响因子：2.271； 五年影响因子：2.707 ）

ISSN： 0003-6072

年卷期： 2011 年 99 卷 2 期

页码：

收录情况： SCI

摘要： A novel isolate, designated strain KLBMP 1115(T) was isolated from the surface-sterilized root of oil-seed plant Jatropha curcas L. collected from Sichuan Province, south-west China. Characterization of the isolate was based on a polyphasic approach. 16S rRNA gene sequence analysis indicated that strain KLBMP 1115(T) belongs to the phylogenetic cluster of the genus Pseudonocardia and was most closely related to Pseudonocardia adelaidensis EUM 221(T) (98.9%) and Pseudonocardia zijingensis DSM 44774(T) (98.6%), whereas the DNA-DNA relatedness values between strain KLBMP 1115(T) and the two type strains were 47.3 and 39.7%, respectively. Levels of lower similarities to the type strains of other recognized Pseudonocardia species ranged from 94.4 to 98.4%. The diagnostic diamino acid in the cell-wall peptidoglycan was meso-diaminopimelic acid. The predominant respiratory quinone was MK-8(H-4). The major fatty acids of strain KLBMP 1115(T) was iso-C-16:0. The chemotaxonomic properties of strain KLBMP 1115(T) were consistent with those shared by members of the genus Pseudonocardia. On the basis of the phenotypic features and the DNA-DNA hybridization data, strain KLBMP 1115(T) represents a novel species of the genus Pseudonocardia, for which the name Pseudonocardia sichuanensis sp. nov. is proposed. The type strain is KLBMP 1115(T) (=KCTC 19781(T) = CCTCC AA 2010002(T)).

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