1887

Abstract

Two actinomycete strains, MS16-10G and MS16-10W, isolated from soil and producing an antibiotic, were examined and assigned to the genus , because they have a gray aerial mass, spiral spore chains, and a spiny spore surface; form a melanoid pigment on tyrosine agar, on peptone-yeast extract-iron agar, and in tryptone-yeast extract broth; and have cell wall chemotype I. The DNA base compositions and DNA-DNA reassociation of the isolates were compared with those of four strains of authentic species of the genus : two synonymous strains of ( and ) and one strain each of and showing similar morphological characteristics. The results indicated that the two isolates differed from the four authentic species and represent a single new species for which the name is proposed. The type strain is MS16-10G, which has been deposited in the collection of the Fermentation Research Institute, Agency of Industrial Sciences and Technology, Tsukuba, Japan, with accession no. FERM 8432.

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1993-10-01
2022-05-19
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