Yamamura, H. et al. Actinomycetospora iriomotensis sp. nov., a novel actinomycete isolated from a lichen sample. J. Antibiot. 64, 289-292
Division of Applied Biological Sciences, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Kofu, Yamanashi, Japan. The Journal of Antibiotics
(Impact Factor: 1.73).
03/2011; 64(4):289-92. DOI: 10.1038/ja.2011.15
An actinomycete strain, IR73-Li102(T), was isolated from a lichen sample obtained from Iriomote Island, Japan, and subsequently characterized using a polyphasic approach. Comparative 16S rRNA gene sequence analysis revealed that strain IR73-Li102(T) had the highest sequence similarities with Actinomycetospora chiangmaiensis YIM 0006(T) (98.3%), A. corticola 014-5(T) (98.1%) and A. rishiriensis RI109-Li102(T) (98.0%). However, DNA-DNA hybridization assays, as well as physiological and biochemical analyzes, showed that strain IR73-Li102(T) could be clearly differentiated from its closest phylogenetic relatives. The strain contained meso-diaminopimelic acid, and arabinose and galactose were present in whole-cell hydrolysates. The predominant menaquinone was MK-8(H(4)), and the diagnostic phospholipids were phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol and diphosphatidylglycerol. The major cellular fatty acid was iso-C(16:0) (58%). The chemotaxonomic properties of strain IR73-Li102(T) were consistent with those shared by members of the genus Actinomycetospora. On the basis of the phenotypic features and DNA-DNA hybridization data, strain IR73-Li102(T) (= NBRC 106365(T) = KCTC 19783(T)) represents a novel species of the genus Actinomycetospora, for which the name Actinomycetospora iriomotensis sp. nov. is proposed.
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