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Int J Syst Evol Microbiol 58 (2008), 1304-1307; DOI  10.1099/ijs.0.65323-0
© 2008 International Union of Microbiological Societies

Kocuria flava sp. nov. and Kocuria turfanensis sp. nov., airborne actinobacteria isolated from Xinjiang, China

Guoling Zhou{dagger}, Xuesong Luo{dagger}, Yali Tang, Lei Zhang, Qiao Yang, Yijun Qiu and Chengxiang Fang

China Centre for Type Culture Collection (CCTCC), College of Life Sciences, Wuhan University, Wuhan 430072, PR China

Correspondence
Chengxiang Fang
cxfang{at}whu.edu.cn

Two coloured bacteria were isolated from the same plate for detecting cultivable bacteria from the air of Xinjiang in China. Phylogenetic analyses based on 16S rRNA gene sequences revealed that the isolates were members of the genus Kocuria, in which they represented two novel lineages. Although the two strains presented high 16S rRNA gene sequence similarity (above 97 %), their DNA G+C contents were very different (6 mol%). The G+C contents of strains HO-9041T and HO-9042T are 71 and 65 mol%, respectively. DNA relatedness analysis and other taxonomic evidence supports the placement of the two isolates in the genus Kocuria. The diagnostic diamino acid of the cell-wall peptidoglycan is L-lysine and both strains contain MK-8(H2) and MK-9(H2) as major menaquinones. In addition, they share similar fatty acid patterns containing straight-chain saturated and iso- and anteiso-branched acids, with a major component being anteiso-C15:O. Genotypic, morphological and physiological characteristics are used to describe two novel species of Kocuria, for which the names Kocuria flava sp. nov. (type strain HO-9041T =CCTCC AB 206106T =KCTC 19306T) and Kocuria turfanensis sp. nov. (type strain HO-9042T =CCTCC AB 206107T =KCTC 19307T) are proposed.

{dagger}These authors contributed equally to this work.

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of strains HO-9041T and HO-9042T are EF602041 and DQ531634.

Detailed fatty acid profiles of the novel strains and related type strains are available as supplementary material with the online version of this paper.






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Copyright © 2008 by the International Union of Microbiological Societies.