1887

Abstract

Acidophilic actinomycete strains that represent the two major neutrotolerant clusters defined by numerical taxonomy ( Seong, 1992 ) were the subject of a polyphasic taxonomic study. The centrotypes of each cluster, designated as strain JL164 (=KCTC 9924) of cluster 21 and strain CN732 (=KCTC 9926=IMSNU 50114=NRRL B-24245) of cluster 13, were assigned initially to the genus on the basis of morphological and chemotaxonomic characteristics; this assignation was confirmed by 16S rRNA gene sequence data. Strain CN732 formed a distinct phyletic line within the tree, whereas strain JL164 was related closely to the type strain of . It is evident from the present and previous studies that neutrotolerant acidophilic actinomycetes comprise taxonomically diverse groups within the variation encompassed by the genus . It is also apparent that strain CN732 and other members of cluster 13 merit recognition as a novel species, for which the name sp. nov. is proposed.

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2004-01-01
2021-03-07
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