1887

Abstract

A Gram-positive, aerobic, non-motile actinobacterium, designated strain 6014, was isolated from a soil sample collected from Qinghai province, north-west China, and subjected to a polyphasic taxonomic study. The isolate formed elementary branching hyphae and abundant aerial mycelia with globose sporangia on ISP 4 and R2A media. Whole-cell hydrolysates of strain 6014 contained arabinose, galactose and ribose as diagnostic sugars and -diaminopimelic acid as the diagnostic diamino acid. The polar lipids consisted of phosphatidylmethylethanolamine, phosphatidylethanolamine, hydroxy-phosphatidylethanolamine, -acetylglucosamine-containing phospholipids, two unknown phospholipids and an unknown glycolipid. The menaquinone system contained MK-9(H) and MK-9(H). The major fatty acids were C, i-C, C and 10-methyl-C. The genomic DNA G+C content of the isolate was 69.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 6014 fell within the radius of the suborder , in which the strain formed a distinct lineage next to genera of the family Based on data from this polyphasic study, strain 6014 can be readily distinguished from previously described organisms and represents a member of a novel species within a new genus in the suborder . The name gen. nov., sp. nov. is proposed with 6014 (=DSM 45181 =KCTC 19655) as the type strain.

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2011-03-01
2024-03-19
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