Wang C.,Laboratory of Tropical Microbial Resources |
Wang C.,Chinese Academy of Sciences |
Wang C.,Hainan University |
Xu X.-X.,Laboratory of Tropical Microbial Resources |
And 13 more authors.
International Journal of Systematic and Evolutionary Microbiology | Year: 2011
Strain 211018T was isolated from mangrove Excocaria agallocha rhizosphere soil. 16S rRNA gene sequence analysis showed the highest similarity to the type strains of Micromonospora olivasterospora DSM 43868T (98.6%) and Micromonospora pattaloongensis TJ2-2T (98.4%). gyrB gene sequence analysis also indicated that strain 211018T should be assigned to the genus Micromonospora. The characteristic whole-cell sugars are xylose, mannose and arabinose. The predominant menaquinone is MK-9(H 4) and the major fatty acids are iso-C15 : 0 (27.5%), 10-methyl C17 : 0 (14.2%), C17 : 1ω8c (12.8%), iso-C16 : 0 (12.6%), anteiso-C15 : 0 (6.1 %), iso-C 17 : 0 (4.1 %) and anteiso-C17 : 0 (4.0 %). The phospholipid profile comprises phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol and phosphatidylinositol mannosides. The DNA G+C content is 70.8 mol%. The chemotaxonomic data of the strain coincided with those of the genus Micromonospora. Furthermore, a combination of DNA-DNA hybridization results and some physiological and biochemical properties indicated that the novel strain could be readily distinguished from the closest phylogenetic relatives. On the basis of these phenotypic and genotypic data, strain 211018T represents a novel species of the genus Micromonospora, for which the name Micromonospora rhizosphaerae sp. nov. is proposed. The type strain is 211018T (=CGMCC 4.5599T =DSM 45431T). © 2011 IUMS.