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Deinococcus yunweiensis sp. nov., a gamma- and UV-radiation-resistant bacterium from China

Yu-Qin Zhang^1,2,, Cheng-Hang Sun^1,, Wen-Jun Li^1,2, Li-Yan Yu¹, Jian-Qin Zhou¹, Yue-Qin Zhang¹, Li-Hua Xu² and Cheng-Lin Jiang²

¹ Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
² Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China

Correspondence
Wen-Jun Li
wjli{at}ynu.edu.cn

A Gram-negative, non-spore-forming, non-motile, rod-shaped, red-pigmented strain, designated YIM 007^T, was found as a contaminant on an agar plate in the laboratory of Yunnan Institute of Microbiology, China. The optimum growth pH and temperature for the isolate were 7.0–7.5 and 30 °C, respectively. The predominant respiratory quinone was MK-8. The polar lipid profile consisted mainly of various unknown phosphoglycolipids and glycolipids. The major cellular fatty acids were C_{16 : 1}7c, C_{16 : 0}, C_{17 : 0} and C_{17 : 1}8c. L-Ornithine was detected in its peptidoglycan. The DNA G+C content was 64.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain YIM 007^T showed 16S rRNA gene sequence similarity levels of 86.8–92.1 % to the other described Deinococcus species. Based on the high 16S rRNA gene sequence divergence and phenotypic differences, it is proposed that the unknown strain should be classified as a novel species in the genus Deinococcus with the name Deinococcus yunweiensis sp. nov. The type strain is YIM 007^T (=KCTC 3962^T=DSM 17005^T).

Fatty acid profiles of strain YIM 007^T and related strains are available as supplementary material in IJSEM Online.

These authors contributed equally to this work.

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