Streptomyces dengpaensis sp. nov., an actinomycete isolated from desert soil
2018
A novel actinomycete, designated strain XZHG99T, was isolated from soil taken from colour desert, Dengpa District, Tibet Autonomous Region, China. Its taxonomic position was determined by a polyphasic approach. The strain showed morphological and chemotaxonomic features typical of the genus
Streptomyces
: branched substrate and aerial mycelia, straight spore chains and smooth spores; ll-diaminopimelic acid in the cell-wall peptidoglycan; MK-9(H8), MK-9(H2), MK-9(H6) and MK-9(H10) as menaquinones; diphosphatidylglycerol, phospatidylethanolamine, phosphatidylinositol, phosphotidylinositol mannoside and phosphatidylglycerol as prominent phospholipids; iso-C16 : 0, anteiso-C15 : 0 and C16 : 0 as major cellular fatty acids; and DNA G+C content of 69.9 mol%. 16S rRNA gene sequence analysis indicated that strain XZHG99T showed high similarity to
Streptomyces albiflavescens
m20T (98.42 %) and
Streptomyces krungchingensis
KC-035T (98.14 %) as well as formed a monophyletic clade with them in the phylogenetic tree. Based on comparison of phenotypic properties and the low level of DNA–DNA relatedness, strain XZHG99T can be distinguished from phylogenetically related Streptomyces species and is suggested to represent a novel species of the genus
Streptomyces
, for which the name
Streptomyces
dengpaensis sp. nov. is proposed. The type strain is XZHG99T (=CGMCC 4.7472T=KCTC 49090T).
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