1887

Abstract

A novel actinomycete isolate, designated strain MK44, was isolated from a Manganese-polluted soil sample collected near Xiangtan Manganese Mine, South Central China and subjected to a polyphasic taxonomic characterization. Comparison of 16S rRNA gene sequences showed that strain MK44 was a member of the genus and most closely related to JCM 16611 (97.9 %) and JCM 16957 (97.4 %). The DNA–DNA relatedness between strain MK44 and the above two related type species were 30.9±0.3 and 29.9±3.5 %, respectively, values which are far lower than the 70 % threshold for the delineation of a novel prokaryotic species. Furthermore, the results of physiological, biochemical and chemotaxonomic tests allowed further phenotypic differentiation. Therefore, it is concluded that strain MK44 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is MK44 (=GDMCC 4.137=KCTC 39920).

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2018-06-01
2020-09-25
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