Streptomyces wuyuanensis sp nov., an actinomycete from soil
2013
A novel actinomycete, strain FX61T, was isolated from a saline sample collected from the Inner Mongolian Autonomous Region in China and subjected to a taxonomic study using a polyphasic approach. The predominant menaquinones were MK-9(H6), MK-9(H8) and MK-9(H4). The major fatty acids were iso-C16 : 0, anteiso-C15 : 0, iso-C15 : 0, iso-C16 : 1 H, C16 : 0, iso-C14 : 0 and anteiso-C17 : 0. The phospholipid profile contained diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, two phosphatidylinositol mannosides and an unidentified phospholipid. The G+C content of the genomic DNA was 72 mol%. The 16S rRNA gene sequence of the isolate had greater than 98 % similarity with those of
Streptomyces griseoincarnatus
ATCC 23623T (98.2 %),
Streptomyces labedae
DSM 41446T (98.2 %),
Streptomyces variabilis
ATCC 19815T (98.2 %),
Streptomyces erythrogriseus
ATCC 27427T (98.2 %),
Streptomyces matensis
ATCC 23935T (98.2 %),
Streptomyces althioticus
ATCC 19724T (98.2 %) and
Streptomyces luteosporeus
ATCC 33049T (98.0 %), showing that the novel strain should be assigned to the genus
Streptomyces
. DNA–DNA hybridizations with the seven above-mentioned members of the genus
Streptomyces
showed 29.8, 28.5, 27.0, 25.5, 25.0, 23.5 and 22.0 % relatedness, respectively. On the basis of the phenotypic characteristics and genotypic distinctiveness, strain FX61T should be classified as a novel species of the genus
Streptomyces
, for which the name
Streptomyces
wuyuanensis sp. nov. is proposed. The type strain is FX61T ( = CGMCC 4.7042T = KCTC 29112T).
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