Abstract
Strain NHI-24T was isolated from forest soil by a polycarbonate membrane transwell plate. It is a Gram-negative, rod-shaped, non-motile, non-spore-forming bacterium. Phylogenetic analysis based on 16S rRNA gene sequence data indicated that strain NHI-24T is closely related to members of the genus Niabella: N. drilacis E90T (97.7 %), N. tibetensis 15-4T (96.7 %), N. aurantiaca R2A15-11T (96.5 %), N. hirudinis E96T (95.8 %), N. soli JS13-8T (94.7 %), N. ginsengisoli NBRC106414T (94.4 %), and N. yanshanensis CCBAU 05354T (94.2 %). Growth temperatures range widely, from 15 to 37 °C, with 30 °C as the optimum. Salt tolerance ranges from 0 to 2 %. The strain grows at pH 6.5–11.0, with an optimal range of pH 7.0–9.5. Cells produce flexirubin-type pigments, and the predominant menaquinone is MK-7. The major fatty acids of strain NHI-24T are iso-C15:0 (36.72 %), iso-C15:1 G (20.8 %), and summed feature 3 (C16:1 ω7c/C16:1 ω6c; 15.2 %). DNA–DNA hybridization values between strain NHI-24T and members of the genus Niabella range from 37 to 53 %. Based on these results, it is proposed that strain NHI-24T represents a novel species of the genus Niabella with the name Niabella thaonhiensis (= KACC 17215T = KEMB 9005-018T = JCM 18864T).
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Acknowledgments
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science, and Technology (2011-0010144), and by the GAIA project, funded by the Korea Environmental Industry & Technology Institute and the Korean Ministry of Environment (RE201202062).
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The NCBI GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain NHI-24T is JQ796720.
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Pham, V.H.T., Kim, J. Niabella thaonhiensis sp. nov., Isolated From the Forest Soil of Kyonggi University in Korea. Curr Microbiol 69, 176–181 (2014). https://doi.org/10.1007/s00284-014-0565-0
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DOI: https://doi.org/10.1007/s00284-014-0565-0