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Int J Syst Evol Microbiol 59 (2009), 1969-1975; DOI  10.1099/ijs.0.007278-0
© 2009 International Union of Microbiological Societies

Solitalea koreensis gen. nov., sp. nov. and the reclassification of [Flexibacter] canadensis as Solitalea canadensis comb. nov.

Hang-Yeon Weon1, Byung-Yong Kim2, Chang-Muk Lee2, Seung-Beom Hong2, Young-Ah Jeon2, Bon-Sung Koo2 and Soon-Wo Kwon2

1 Mushroom Research Division, National Institute of Horticultural & Medicinal Crop, Rural Development Administration (RDA), Suwon 441-707, Republic of Korea
2 Korean Agricultural Culture Collection (KACC), National Agrobiodiversity Center, National Academy of Agricultural Science, RDA, Suwon 441-707, Republic of Korea

Correspondence
Soon-Wo Kwon
swkwon{at}rda.go.kr

A Gram-negative, rod-shaped, non-spore-forming bacterium, designated strain R2A36-4T, was isolated from greenhouse soil and subjected to a polyphasic taxonomic analysis. 16S rRNA gene sequence analysis revealed that the strain represented a novel member of the family Sphingobacteriaceae. Its nearest phylogenetic neighbour was the type strain of [Flexibacter] canadensis CIP 104802T (93.2 % 16S rRNA gene sequence similarity). Strain R2A36-4T and [F.] canadensis CIP 104802T fell in a distinct cluster within the family Sphingobacteriaceae. Strain R2A36-4T contained MK-7 as the predominant quinone. Strain R2A36-4T and [F.] canadensis CIP 104802T had iso-C15 : 0, iso-C17 : 0 3-OH, summed feature 3 and C15 : 1{omega}6c as the major fatty acids. Strain R2A36-4T could be distinguished from [F.] canadensis on the basis of several physiological properties and fatty acid compositions. Based on phenotypic characterization and 16S rRNA gene sequence analysis, strain R2A36-4T represents a novel species within a new genus, for which the name Solitalea koreensis gen. nov., sp. nov. is proposed. The type strain of Solitalea koreensis is strain R2A36-4T (=KACC 12953T=DSM 21342T). It is also proposed that [F.] canadensis be transferred to this genus as Solitalea canadensis comb. nov. (type strain UASM 9DT=ATCC 29591T=CIP 104802T=DSM 3403T=NBRC 15130T=JCM 21819T=KACC 13276T=LMG 8368T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain R2A36-4T is EU787448.

A transmission electron micrograph of cells of strain R2A36-4T and a table showing the cellular fatty acid compositions of strain R2A36-4T and [Flexibacter] canadensis CIP 104802T are available as supplementary material with the online version of this paper.






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