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1 The Key Laboratory for Microbial Resources of Ministry of Education, People's Republic of China, Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
2 Department of Chemistry, Chuxiong Normal College, Chuxiong, Yunnan 675000, People's Republic of China
3 DSMZ Deutsche Sammlung von Mikroorganismen und Zellkulturen, Mascheroder Weg 1b, D-38124 Braunschweig, Germany
Correspondence
Cheng-Lin Jiang
lihxu{at}ynu.edu.cn or
liact{at}hotmail.com
The taxonomic position of two Gram-positive strains, YIM 70084T and YIM 70097T, isolated from hypersaline soils was determined by a polyphasic approach. Cells of strain YIM 70084T are motile cocci, whereas those of strain YIM 70097T are non-motile rods. The G+C contents of their DNA are 64·4 and 66·7 mol%. Both strains had chemotaxonomic markers typical of the genus Nesterenkonia and formed a coherent cluster with Nesterenkonia species in a phylogenetic inference based on 16S rDNA sequence analysis, exhibiting less than 97 % similarity to each other and to the other two type strains of the genus. Phylogenetic distinction and differences in the peptidoglycan type, composition of cell-wall sugars, phospholipid patterns, the major menaquinones and other phenotypic characteristics indicate that the strains under study represent two novel species, Nesterenkonia halotolerans sp. nov. (type strain YIM 70084T=CCTCC AA 001022T=DSM 15474T) and Nesterenkonia xinjiangensis sp. nov. (type strain YIM 70097T=CCTCC AA 001025T=DSM 15475T).
The GenBank/EMBL/DDBJ accession numbers for the 16S rDNA sequences of strains YIM 70084T and YIM 70097T are AY226508 and AY226510.
Images of cells of strains YIM 70084T and YIM 70097T are available as supplementary material in IJSEM Online.
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