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Int J Syst Evol Microbiol 58 (2008), 2734-2738; DOI  10.1099/ijs.0.65004-0
© 2008 International Union of Microbiological Societies

Microlunatus panaciterrae sp. nov., a β-glucosidase-producing bacterium isolated from soil in a ginseng field

Dong-Shan An1, Wan-Taek Im1 and Min-Ho Yoon2

1 Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
2 Department of BioEnvironmental Chemistry, College of Agriculture and Life Sciences, Chungnam National University, Gung-dong 22, Yuseong-gu, Daejeon 305-764, Republic of Korea

Correspondence
Min-Ho Yoon
mhyoon{at}cnu.ac.kr

A novel bacterial strain, designated Gsoil 954T, showing β-glucosidase activity was isolated from a soil sample from a ginseng field in Pocheon Province, South Korea. The isolate was a Gram-positive, aerobic, motile, coccus-shaped, non-endospore-forming bacterium. Comparative analysis of 16S rRNA gene sequences revealed that strain Gsoil 954T belonged to the family Propionibacteriaceae, the highest levels of sequence similarity being found with the type strains of Microlunatus ginsengisoli (96.4 %) and Microlunatus phosphovorus (96.2 %). The strain showed <95.9 % similarity with respect to other species within the family Propionibacteriaceae. In addition, the presence of LL-2,6-diaminopimelic acid in the cell-wall peptidoglycan, MK-9(H4) as the major menaquinone and anteiso-C15 : 0 and iso-C15 : 0 as the major cellular fatty acids suggested its affiliation with the genus Microlunatus. The G+C content of the genomic DNA was 65.1 mol%. On the basis of its phenotypic characteristics and phylogenetic distinctiveness, strain Gsoil 954T represents a novel species within the genus Microlunatus, for which the name Microlunatus panaciterrae sp. nov. is proposed. The type strain is Gsoil 954T (=KCTC 13058T=DSM 18662T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain Gsoil 954T is AB271051.






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Copyright © 2008 by the International Union of Microbiological Societies.