1887

Abstract

A novel spherical actinobacterium, designated RS-2-3, was isolated from the rhizosphere of a mangrove growing on Rambut Island, Indonesia, and its taxonomic position was investigated using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequence comparison revealed that strain RS-2-3 was related to the members of the genus . The highest 16S rRNA gene sequence similarity value was observed with KMM 3905 (97.0 %). The peptidoglycan type of strain RS-2-3 was found to be A3α with an interpeptide bridge comprising -Ala. The predominant menaquinone was MK-7(H) and the major fatty acids were anteiso-C and iso-C. The DNA G+C content was 71.8 mol%. These characteristics were consistent with those of members of the genus . Meanwhile, physiological and biochemical characteristics revealed that strain RS-2-3 differed from the species of the genus with validly published names. Therefore, strain RS-2-3 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is RS-2-3 (=NBRC 110990=InaCC A704).

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2016-09-01
2024-12-06
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