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1 Applied Microbiology Division, National Institute of Agricultural Science and Technology, Rural Development Administration (RDA), Suwon 441-707, Republic of Korea
2 Organic Farming Division, National Institute of Agricultural Science and Technology, Rural Development Administration (RDA), Suwon 441-707, Republic of Korea
3 Korean Agricultural Culture Collection (KACC), Microbial Genetics Division, National Institute of Agricultural Biotechnology, RDA, Suwon 441-707, Republic of Korea
Correspondence
Soon-Wo Kwon
swkwon{at}rda.go.kr
Two novel strains isolated from soils, JS12-10T and JS14-6T, were characterized using a polyphasic approach to determine their taxonomic positions. These isolates were found to be aerobic, Gram-negative, motile with one polar flagellum, non-spore-forming and rod-shaped. Phenotypic and fatty acid data supported the affiliation of JS12-10T and JS14-6T to the genus Dyella. However, chemotaxonomic data and DNA–DNA relatedness values allowed differentiation of these strains from other Dyella species with validly published names. Strains JS12-10T and JS14-6T showed the highest 16S rRNA gene sequence similarities with Dyella ginsengisoli Gsoil 3046T (98.4 %) and Dyella japonica XD53T (97.9 %), respectively, and the 16S rRNA gene sequence similarity between them was 97.1 %. DNA–DNA hybridization values between the novel isolates and strains of other recognized Dyella species were 29–38 %. Therefore, strains JS12-10T and JS14-6T represent two novel species of the genus Dyella, for which the names Dyella soli sp. nov. (type strain JS12-10T =KACC 12747T =JCM 15423T) and Dyella terrae sp. nov. (type strain JS14-6T =KACC 12748T =JCM 15424T) are proposed.
The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of strains JS12-10T and JS14-6T are EU604272 and EU604273, respectively.
Maximum-likelihood and maximum-parsimony trees based on 16S rRNA gene sequences are available with the online version of this paper.
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