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Int J Syst Evol Microbiol 57 (2007), 2754-2757; DOI  10.1099/ijs.0.65095-0
© 2007 International Union of Microbiological Societies

Rhodococcus qingshengii sp. nov., a carbendazim-degrading bacterium

Jing-Liang Xu1,{dagger}, Jian He1,{dagger}, Zhi-Chun Wang1, Kun Wang1, Wen-Jun Li2, Shu-Kun Tang2 and Shun-Peng Li1

1 Key Laboratory for Microbiological Engineering of Agricultural Environment of Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, PR China
2 Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China

Correspondence
Shun-Peng Li
lsp{at}njau.edu.cn

A Gram-positive, aerobic, non-motile, mesophilic strain, djl-6T, able to degrade carbendazim, was isolated from a carbendazim-contaminated soil sample from Jiangsu province, China. The taxonomic position of this isolate was analysed by using a polyphasic approach. Chemotaxonomic analysis including peptidoglycan type, diagnostic sugar composition, fatty acid profile, menaquinones, polar lipids and mycolic acids showed that the characteristics of strain djl-6T were in good agreement with those of the genus Rhodococcus. DNA–DNA hybridization showed that it had low genomic relatedness with Rhodococcus baikonurensis DSM 44587T (31.8 %), Rhodococcus erythropolis DSM 43066T (23.8 %) and Rhodococcus globerulus DSM 43954T (17.7 %), the three type strains to which strain djl-6T was most closely related based on 16S rRNA gene sequence analysis (99.78, 99.25 and 98.91 % similarity, respectively). Based on the phenotypic properties and DNA–DNA hybridization data, strain djl-6T (=CGMCC 1.6580T =KCTC 19205T) is proposed as the type strain of a novel Rhodococcus species, Rhodococcus qingshengii sp. nov.

{dagger}These authors contributed equally to this work.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain djl-6T is DQ090961.






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Copyright © 2007 by the International Union of Microbiological Societies.