1887

Abstract

An actinobacterium, designated strain 9583b, was isolated from the lichen collected from Jiaozi Snow Mountain, Yunnan Province, China. Cells of strain 9583b were Gram-stain-positive, aerobic, catalase-positive and oxidase-negative. The strain have a short rod-shaped, irregular morphology, and could grow at the temperature range of 4 to 28 °C. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 9583b belonged to the genus in the family , and shared highest sequence similarity with the type strains of and (96.8 and 95.6 %, respectively). The peptidoglycan type was B2γ, with diaminobutyric acid as the diagnostic diamino acid. The polar lipids comprised of phosphatidylglycerol, diphosphatidylglycerol, five unidentified glycolipids and three unidentified phospholipids. The respiratory quinone was determined to be MK-10. While the major fatty acids (>5 %) of strain 9583b were anteiso-C, C 2-OH and iso-C, the 1,1-dimethoxy-alkanes included a-15 : 0 DMA, i-16 : 0 DMA, a-17 : 0 DMA and i-15 : 0 DMA. The genomic DNA G+C content of strain 9583b was 66.8 mol%. On the basis of the phylogenetic, phenotypic and chemotaxonomic data in this study, strain 9583b represents a novel species of the genus S, for which the name sp. nov. is proposed. The type strain is 9583b (=CGMCC 1.12976=DSM 103962).

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2017-05-01
2024-03-28
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