1887

Abstract

The taxonomic status of six neutrotolerant acidophilic streptomycetes isolated from acidic soils in Yunnan Province, China, was established using a polyphasic approach. The morphological and chemotaxonomic characteristics revealed that the isolates belong to the genus . Almost complete 16S rRNA gene sequences of the isolates were determined and aligned with available corresponding sequences of representatives of the family ; phylogenetic trees were inferred using four tree-making algorithms. The isolates formed a distinct, albeit heterogeneous, subclade in the 16S rRNA gene tree together with the type strain of , but were readily distinguishable from the latter using DNA–DNA hybridization and phenotypic data. It was evident from the genotypic and phenotypic data that the isolates belonged to four novel species, for which the following names are proposed: sp. nov. (type strain 701=CGMCC 4.2022=JCM 13274), sp. nov. (type strain 1413=CGMCC 4.2025=JCM 13276), sp. nov. (type strain 13c15=CGMCC 4.2026=JCM 13277) and sp. nov. (type strain 1307=CGMCC 4.2023=JCM 13275); isolates 317 and 913 belong to this latter species.

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2006-05-01
2020-01-26
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