1887

Abstract

An actinomycete strain, designated YIM 91355, was isolated from a soil sample collected from a hypersaline soil in Xinjiang Province, China, and its taxonomic position was investigated by using a polyphasic approach. The strain grew well on most media tested and no diffusible pigment was produced. The aerial mycelium of this organism was well developed but not fragmented and, at maturity, formed short chains of spores. Substrate mycelium was branched with non-fragmenting hyphae and single, oval to round spores were formed, borne on sporophores. Strain YIM 91355 contained -diaminopimelic acid as the diagnostic amino acid. The purified cell-wall hydrolysate contained galactose. The predominant menaquinones were MK-10(H) (43.2 %), MK-10(H) (17.7 %) and MK-11(H) (10.4 %). Phospholipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol mannosides, phosphatidylcholine, phosphatidylinositol and an unidentified phospholipid. The major fatty acids were i-C, ai-C, 10-methyl C and 10-methyl C. The GC content of the genomic DNA was 72.1 mol%. Phylogenetic analysis indicated that the isolate belongs to the genus of the family . Based on phenotypic and genotypic data, it is concluded that strain YIM 91355 represents a novel species of the genus , for which the name sp. nov. (type strain YIM 91355 =DSM 45075 =KCTC 19236) is proposed.

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2008-07-01
2019-10-19
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