An actinomycete, strain YC75, which produced bafilomycin-like antifungal compounds, was identified as a member of the genus on the basis of morphological and chemotaxonomic characteristics. The strain produced the aerial and fragmenting vegetative mycelia consisting of straight chains of 20 or more smooth-surfaced spores. Submerged spores were formed in tryptic soy broth. No soluble pigments were formed. Whole-cell hydrolysates contained glucose and mannose, but not galactose. The 16S rDNA sequence of YC75was compared with those of the other representative kitasatosporae and streptomycetes. Strain YC75formed a significant monophyletic clade with . The levels of DNA relatedness between strain YC75and representatives of the genus ranged from 16 to 59% including (28 and 40%). It is clear from polyphasic evidence that the isolate should be classified as sp. nov., whose type strain is YC75(= KCTC 2395). The presence of galactose in whole-cell hydrolysates may not be a stable chemical marker for the genus .


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