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Int J Syst Evol Microbiol 59 (2009), 709-713; DOI  10.1099/ijs.0.004564-0
© 2009 International Union of Microbiological Societies

Deinococcus xinjiangensis sp. nov., isolated from desert soil

Fang Peng, Lei Zhang, Xuesong Luo, Jun Dai, Hongli An, Yali Tang and Chengxiang Fang

College of Life Sciences, Wuhan University, Wuhan 430072, PR China

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

A Gram-positive-staining, spherical-shaped and faintly pink-pigmented bacterial strain, X-82T, was isolated from soil samples collected from a desert in Xinjiang, China. The organism was found to be resistant to UV radiation but sensitive to gamma radiation and desiccation. The optimum growth pH, NaCl concentration and temperature were pH 7.0, 0–1 % NaCl and 30 °C. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain X-82T is member of a novel species belonging to the genus Deinococcus, with Deinococcus hopiensis KR-140T as its closest relative (93.5 % similarity). The DNA G+C content (60 mol%), quinone type (MK-8), major cellular fatty acids (16 : 1{omega}7c, 16 : 0 and 17 : 1 iso {omega}9c), the presence of peptidoglycan with L-ornithine and the dominant polar lipid (phosphoglycolipids and glycolipids) support the affiliation of strain X-82T with the genus Deinococcus. A novel species is proposed, for which the name Deinococcus xinjiangensis sp. nov. is proposed, with the type strain X-82T (=CCTCC AB 207226T =NRRL B-51287T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain X-82T is EU626561.

Fatty-acid profiles of strain X-82T and related type strains, polar-lipid profiles following 2D TLC separation, representative survival curves in response to UV and gamma radiation and 16S rRNA gene sequence-based UPGMA, maximum-parsimony and minimum-evolution trees are available as supplementary material with the online version of this paper.






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Copyright © 2009 by the International Union of Microbiological Societies.