Nocardiopsis salina sp. nov., a novel halophilic actinomycete isolated from saline soil in China

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Nocardiopsis salina sp. nov., a novel halophilic actinomycete isolated from saline soil in China
Wen Jun Li; Dong Jin park; Shu Kun Tang; Dong Wang; Jae-Chan Lee; L H Xu; Chang-Jin Kim; C L Jiang
Bibliographic Citation
International Journal of Systematic and Evolutionary Microbiology, vol. 54, no. 5, pp. 1805-1809
Publication Year
A moderately halophilic actinomycete strain, designated YIM 90010T, was isolated from a soil sample collected from a hypersaline habitat in Xinjiang Province, China, and then investigated using a polyphasic taxonomic approach. The strain produced abundant aerial mycelia and fragmented substrate mycelia on most media tested; the optimum NaCl concentration for growth was 10% (w/v) and the optimum growth temperature and pH were 28°C and 7.2, respectively. Chemotaxonomically and phylogenetically, the strain was related to members of the genus Nocardiopsis. The isolate contained chemotaxonomic markers that were diagnostic for the genus Nocardiopsis, i.e. meso-diaminopimelic acid, no diagnostic sugars, and MK-10(H6), MK-10(H8) and MK-12 as the predominant menaquinones. The major fatty acids were iso- and anteiso-branched acids combined with tuberculostearic acid (Me C18:0), straight-chain saturated fatty acids and unsaturated fatty acids. The G+C content was 73.1 mol%. Phylogenetic analysis confirmed that strain YIM 90010T was a member of the genus Nocardiopsis and most closely related to Nocardiopsis kunsanensis (97.6% similarity) and Nocardiopsis xinjiangensis (98.1% similarity). It can be differentiated from these species by using phenotypic characteristics, phylogenetic analysis and DNA-DNA hybridization results. On the basis of the polyphasic evidence, a novel species, Nocardiopsis salina sp. nov., is proposed. The type strain of the species is YIM 90010T (=KCTC 19003T =CCTCC AA 204009T).
Microbiology Soc
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Division of Biomedical Research > Microbiome Convergence Research Center > 1. Journal Articles
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