1887

Abstract

A novel endophytic actinomycete, strain GMKU 367, was isolated from roots of Thai glutinous rice plants ( L. ‘RD6’) collected from Pathum Thani Rice Research Center, Pathum Thani province, Thailand. Strain GMKU 367 formed cylindrical spores on aerial mycelium, but sporangium-like structures and fragmentation of substrate mycelium were not observed. The cell-wall amino acids contained -diaminopimelic acid, alanine, glutamic acid and acetylated muramic acid. The whole-cell sugars were arabinose, galactose, mannose, rhamnose and ribose. Major fatty acids were iso-C, iso-C and C. The diagnostic menaquinone was MK-9(H). The polar phospholipids were phosphatidylethanolamine and hydroxyphosphatidylethanolamine. The G+C content of the genomic DNA was 71.1 mol%. Phylogenetic analyses based on 16S rRNA gene sequence data indicated that strain GMKU 367 differed from members of the family . On the basis of the evidence presented in this polyphasic study, it is proposed that strain GMKU 367 represents a novel species in a new genus in the family , with the name gen. nov., sp. nov.; the type strain of is GMKU 367 (=BCC 31372 =NBRC 105245).

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2010-05-01
2019-10-14
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