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Microbacterium ginsengisoli sp. nov., a {beta}-glucosidase-producing bacterium isolated from soil of a ginseng field.Park MJ, Kim MK, Kim HB, Im WT, Yi TH, Kim SY, Soung NK, Yang DC Department of Oriental Medicinal Material and Processing College of Life Science, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea. Strain Gsoil 259(T), a beta-glucosidase-producing bacterium, was isolated from a soil sample from a ginseng field in the Republic of Korea and characterized in order to determine its taxonomic position. Cells were Gram-positive, heterotrophic, strictly aerobic, non-motile short rods. 16S rRNA gene sequence analysis revealed that strain Gsoil 259(T) belonged to the genus Microbacterium and was closely related to Microbacterium arborescens IFO 3750(T) (98.5 %) and Microbacterium imperiale IFO 12610(T) (97.9 %). However, it has low values for DNA-DNA relatedness with the above strains (20.7 and 17.5 %, respectively). Strain Gsoil 259(T) possessed chemotaxonomic markers that were consistent with classification in the genus Microbacterium, i.e. MK-11 and MK-12 were the major menaquinones and anteiso-C(17 : 0), anteiso-C(15 : 0) and iso-C(16 : 0) were the predominant cellular fatty acids. The DNA G+C content was 69.4 mol%. The cell-wall sugar was rhamnose and the diamino acid in the cell-wall peptidoglycan was ornithine. On the basis of data from this polyphasic study, strain Gsoil 259(T) represents a novel species of the genus Microbacterium, for which the name Microbacterium ginsengisoli sp. nov. is proposed. The type strain is Gsoil 259(T) (=KCTC 19189(T) =DSM 18659(T)). Published 25 January 2008 in Int J Syst Evol Microbiol, 58: 429-33.
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