1887

Abstract

A novel endophytic actinomycete, strain WPS1-2, isolated from a root of C. H. Wright, was characterized taxonomically by using a polyphasic approach. Strain WPS1-2 exhibited identical characteristics to the members of the genus . Single spores were observed directly on substrate mycelia. The cell-wall peptidoglycan of the strain contained -diaminopimelic acid and 3-OH--diaminopimelic acid. Whole-cell hydrolysates contained glucose, ribose, arabinose and xylose. The predominant menaquinones were MK-10(H) and MK-10(H). The major cellular fatty acids consisted of iso-C, iso-C and anteiso-C. According to the 16S rRNA gene sequence of the strain, WPS1-2 showed highest similarity to CS1-12 (99.02 %). Phylogenetic analysis of the gyrase subunit B () gene indicated that the strain was related to CS1-12. The DNA G+C content was 73.7 mol%. The strain could be distinguished from closely related type strains by using a combination of morphological, chemotaxonomic, physiological and biochemical data together with DNA–DNA relatedness values. Based on these observations, strain WPS1-2 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is WPS1-2 (=KCTC 39787=NBRC 112325=TISTR 2405).

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2018-04-01
2024-04-19
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