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  • Title: Virgisporangium myanmarense sp. nov., a novel motile actinomycete isolated from an anthill soil in Myanmar.
    Author: Yamamura H, Miyazaki S, Ikoma K, Nakagawa Y, Hamada M, Otoguro M, Tamura T, Ando K, Phay N, Hayakawa M.
    Journal: J Antibiot (Tokyo); 2017 Oct; 70(10):995-999. PubMed ID: 28698675.
    Abstract:
    An actinomycete strain, designated MM04-1133T, was isolated from an anthill soil sample collected in Bagan, Myanmar. To establish the taxonomic status of this strain, the isolate was subjected to a polyphasic approach. Strain MM04-1133T was Gram-staining positive, aerobic, motile and formed long and narrow sporangia directly above the surface of the substrate mycelium. Whole-cell hydrolysates of the strain contained 3-OH-diaminopimelic acid, arabinose, glucose, galactose, mannose, rhamnose and xylose. The predominant menaquinones were MK-10(H6) and MK-10(H8). The major cellular fatty acids were iso-C16:0 and anteiso-C17:0. The diagnostic phospholipid was phosphatidylethanolamine. The G+C content of the DNA was 69.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain MM04-1133T clustered within the genus Virgisporangium, with the sequence exhibiting highest similarity (98.5% identity) with Virgisporangium ochraceum NBRC 16418T. The strain grew in the presence of 0-1% (w/v) NaCl, at pH 5-8 and at 20-40 °C, with optimal growth at 30-37 °C. Based on phylogenetic analysis and chemotaxonomic and phenotypic data, we propose classifying this isolate as a novel species of the genus Virgisporangium, to be designated as Virgisporangium myanmarense sp. nov. The type strain is MM04-1133T (=NBRC 112733T=VTCC 910008T).
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