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Int J Syst Evol Microbiol 59 (2009), 2162-2165; DOI  10.1099/ijs.0.009001-0
© 2009 International Union of Microbiological Societies

Jiangella alba sp. nov., an endophytic actinomycete isolated from the stem of Maytenus austroyunnanensis

Sheng Qin, Guo-Zhen Zhao, Jie Li, Wen-Yong Zhu, Li-Hua Xu and Wen-Jun Li

The Key Laboratory for Microbial Resources of the Ministry of Education, PR China, and Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China

Correspondence
Wen-Jun Li
wjli{at}ynu.edu.cn
or
liact{at}hotmail.com

A novel actinomycete strain, YIM 61503T, isolated from the stem of Maytenus austroyunnanensis, was characterized by using a polyphasic approach. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain YIM 61503T belonged to the genus Jiangella and exhibited 16S rRNA gene sequence similarities of 98.8 and 98.6 % to Jiangella alkaliphila D8-87T and Jiangella gansuensis YIM 002T. The chemotaxonomic properties of strain YIM 61503T were consistent with those of the genus Jiangella: the cell-wall peptidoglycan type was based on LL-diaminopimelic acid and MK-9(H4) was the predominant menaquinone. The major fatty acids were anteiso-C15 : 0, iso-C16 : 0, iso-C14 : 0, C17 : 1{omega}8c and anteiso-C17 : 0. The DNA G+C content was 71.9 mol%. Strain YIM 61503T was phenotypically distinct from recognized Jiangella species and was shown to belong to a separate genomic species based on DNA–DNA hybridization results. Thus, strain YIM 61503T is considered to represent a novel species of the genus Jiangella, for which the name Jiangella alba sp. nov. is proposed. The type strain is YIM 61503T (=DSM 45237T =CCTCC AA 208023T).

Abbreviations: DAP, 2,6-diaminopimelic acid

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain YIM 61503T is FJ157186.

A supplementary table showing the cellular fatty acid profiles of type strains of the genus Jiangella is available with the online version of this paper.




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S. Qin, J. Li, H.-H. Chen, G.-Z. Zhao, W.-Y. Zhu, C.-L. Jiang, L.-H. Xu, and W.-J. Li
Isolation, Diversity, and Antimicrobial Activity of Rare Actinobacteria from Medicinal Plants of Tropical Rain Forests in Xishuangbanna, China
Appl. Envir. Microbiol., October 1, 2009; 75(19): 6176 - 6186.
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