1887

Abstract

A novel actinomycete strain, designated YIM 75904, was isolated from a soil sample that had been collected from a dry and hot river valley in Dongchuan county, Yunnan province, south-western China. The taxonomic position of the novel strain was investigated by a polyphasic approach. In phylogenetic analyses based on 16S rRNA gene sequences, strain YIM 75904 formed a distinct clade within the genus and appeared to be closely related to K24 (99.3 % sequence similarity). Strain YIM 75904 had a type-IV cell wall, with no detectable mycolic acids, and had MK-9(H) as its predominant menaquonine. Its cell wall contained -diaminopimelic acid, galactose, glucose and arabinose, and its major cellular fatty acids were iso-C, iso-C, anteiso-C and anteiso-C. The genomic DNA G+C content of the novel strain was 68.5 mol%. Based on the results of physiological and biochemical tests and DNA–DNA hybridizations, strain YIM 75904 represents a novel species of the genus for which the name sp. nov. is proposed. The type strain is YIM 75904 ( = CCTCC AA 2011016  = JCM 18054).

Funding
This study was supported by the:
  • , Science and Technology Innovation Talents Program of the Universities of Henan Province , (Award 2010HASTIT020)
  • , Key Technologies R & D Program of Henan Province , (Award 112102210106 and 112102310335)
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2012-11-01
2020-10-21
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