Pedobacter lentus sp. nov. and Pedobacter terricola sp. nov., isolated from soil

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Title
Pedobacter lentus sp. nov. and Pedobacter terricola sp. nov., isolated from soil
Author(s)
Jung-Hoon Yoon; So Jung Kang; Sooyeon Park; Tae Kwang Oh
Bibliographic Citation
International Journal of Systematic and Evolutionary Microbiology, vol. 57, no. 9, pp. 2089-2095
Publication Year
2007
Abstract
Two Gram-negative, non-motile, pleomorphic bacterial strains, DS-40T and DS-45T, were isolated from a soil sample collected from Dokdo, Korea, and their exact taxonomic positions were investigated by using a polyphasic approach. Strains DS-40T and DS-45T grew optimally at 25 °C and pH 6.5-7.5 in the presence of 0-1.0% (w/v) NaCl. They contained MK-7 as the predominant menaquinone and possessed iso-C15:0, iso-C17:0 3-OH and summed feature 3 (C16:1ω7c and/or iso-C15:0 2-OH) as the major fatty acids. The DNA G+C contents of strains DS-40T and DS-45T were 36.0 and 36.8 mol%, respectively. Strains DS-40T and DS-45T shared a 16S rRNA gene sequence similarity of 96.7% and demonstrated a mean DNA-DNA relatedness level of 12%. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strains DS-40T and DS-45T were most closely phylogenetically affiliated with the genus Pedobacter of the family Sphingobacteriaceae. Strains DS-40T and DS-45T exhibited 16S rRNA gene sequence similarity values of 91.4-93.7 and 89.9-91.6% with respect to the type strains of Pedobacter and Sphingobacterium species, respectively. Phenotypic and chemotaxonomic properties, together with the phylogenetic data, support the assignment of strains DS-40T and DS-45T as two distinct species within the genus Pedobacter. On the basis of phenotypic, phylogenetic and genetic data, strains DS-40T and DS-45T represent two novel species of the genus Pedobacter, for which the names Pedobacter lentus sp. nov. and Pedobacter terricola sp. nov. are proposed, respectively. The respective type strains are DS-40T (=KCTC 12875T=JCM 14593T) and DS-45T (=KCTC 12876T=JCM 14594T).
ISSN
0020-7713
Publisher
Microbiology Soc
DOI
http://dx.doi.org/10.1099/ijs.0.65146-0
Type
Article
Appears in Collections:
Division of Biomedical Research > Metabolic Regulation Research Center > 1. Journal Articles
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