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Xie Q.-Y.,Key Laboratory of Tropical Microbial Resources | Xie Q.-Y.,Chinese Academy of Sciences | Wang C.,Key Laboratory of Tropical Microbial Resources | Wang C.,Chinese Academy of Sciences | And 9 more authors.
International Journal of Systematic and Evolutionary Microbiology | Year: 2011

A novel endophytic actinomycete, designated strain 202201T, was isolated from an Acanthus illicifolius root collected from the mangrove reserve zone in Hainan Province, China. Phylogenetic analysis based on 16S rRNA gene sequences suggested that strain 202201T fell within the family Micromonosporaceae. The strain formed an extensively branched substrate mycelium, which carried uneven warty-surfaced spores. Cell walls of strain 202201T contained meso- diaminopimelic acid and xylose, mannose, arabinose, ribose and glucose were detected as whole- cell sugars. The acyl type of the cell-wall polysaccharides was glycolyl. The major menaquinones were MK-9(H4), MK-9(H6), MK-9(H8) and MK-10(H4). The polar lipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylinositol mannoside and phosphatidylserine. The major cellular fatty acids were 10-methyl-C17: 0, iso-C15: 0, iso-C16: 0 and C17: 1ω8c. The DNA G+C content was 72.3 mol%. On the basis of the morphological and chemotaxonomic characteristics, phylogenetic analysis and characteristic patterns of 16S rRNA gene signature nucleotides, strain 202201T (=CGMCC 4.5597T =DSM 45430T) represents a novel species of a new genus within the family Micromonosporaceae, for which the name Jishengella endophytica gen. nov., sp. nov. is proposed. © 2011 IUMS Printed in Great Britain.

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