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Actinoplanes lichenicola sp. nov. and Actinoplanes ovalisporus sp. nov., isolated from lichen in Thailand.

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Two actinobacteria, designated as strain LDG1-01T and LDG1-06T, were isolated from lichen samples collected in Thailand. Results of morphological characterization, chemotaxonomic studies and 16S rRNA gene analysis indicated that both… Click to show full abstract

Two actinobacteria, designated as strain LDG1-01T and LDG1-06T, were isolated from lichen samples collected in Thailand. Results of morphological characterization, chemotaxonomic studies and 16S rRNA gene analysis indicated that both strains were members of the genus Actinoplanes. MK-9(H4) was found as the major menaquinone. The major fatty acids were anteiso-C15 : 0, iso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0. Phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol were observed as the polar lipids, but differences in minor unidentified polar lipids were found between the strains. Results of comparative genome analysis based on average nucleotide identity and digital DNA-DNA hybridization calculations revealed that both strains showed values below 95 and 70 %, respectively, from each other and closely related Actinoplanes type strains. Based on data from this polyphasic study, strains LDG1-01T and LDG1-06T represent novel species of the genus Actinoplanes. The names proposed are Actinoplanes lichenicola sp. nov. (type strain, LDG1-01T (=JCM 33066T=TISTR 2982T) and Actinoplanes ovalisporus sp. nov. (type strain, LDG1-06T=JCM 33067T=TISTR 2983T).

Keywords: lichenicola nov; actinoplanes lichenicola; actinoplanes ovalisporus; isolated lichen; ovalisporus nov

Journal Title: International journal of systematic and evolutionary microbiology
Year Published: 2021

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