1887

Abstract

A thermophilic bacterium, designated strain RHA1, was isolated from a sediment sample collected from a hot spring in Tengchong county, Yunnan province, south-west China, and was characterized by using a polyphasic approach. Based on its phenotypic and phylogenetic characteristics, strain RHA1 was affiliated to the genus . The strain formed white aerial and yellow–white substrate mycelia, bearing single endospores on short sporophores. The cell-wall peptidoglycan contained -diaminopimelic acid. Whole-cell hydrolysates contained ribose and glucose. The major fatty acids were iso-C (62.39 %) and anteiso-C (17.55 %) The predominant menaquinone was MK-9. The GC content of the genomic DNA of strain RHA1 was 47.9 mol%. Based on DNA–DNA hybridization data, chemotaxonomic characteristics and differential physiological properties, strain RHA1 is considered to represent a novel species of the genus for which the name sp. nov. is proposed; the type strain is RHA1 ( = DSM 45263 = CCTCC AA 208058).

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2012-01-01
2019-10-22
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