International Journal of Systematic and Evolutionary Microbiology, Vol 52, 415-421, Copyright © 2002 by Society for General Microbiology

Paenibacillus chinjuensis sp. nov., a novel exopolysaccharide-producing bacterium

J. H. Yoon, W. T. Seo, Y. K. Shin, Y. H. Kho, K. H. Kang and Y. H. Park
Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea

A novel exopolysaccharide-producing bacterium (WN9(T)) was isolated from Chinju, Korea, and was identified as a member of the genus Paenibacillus on the basis of phenotypic characteristics and phylogenetic inference based on 16S rDNA sequence. This organism is a facultatively anaerobic, endospore-forming rod. The diamino acid found in the peptidoglycan is meso-diaminopimelic acid. The predominant menaquinone is MK-7. The major cellular fatty acid is anteiso-C(15:0). The G+C content is 53 mol%. The phylogenetic tree shows that strain WN9(T) falls within the radiation of a cluster comprising the Paenibacillus species. The levels of 16S rDNA similarity between strain WN9(T) and the type strains of validly described Paenibacillus species are 92.1--95.8%. Strain WN9(T) is clearly distinguishable from some phylogenetically related Paenibacillus species on the basis of DNA--DNA relatedness data and phenotypic characters. Therefore, on the basis of these data, a novel species of the genus Paenibacillus, Paenibacillus chinjuensis sp. nov., is proposed. The type strain is strain WN9(T) (=KCTC 8951P(T)=JCM 10939(T)).

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