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Leifsonia ginsengi sp. nov., isolated from ginseng root

Fubin Qiu^1,, Ying Huang^2,, Lei Sun^1,3, Xiaoxia Zhang¹, Zhiheng Liu² and Wei Song¹

¹ College of Life Sciences, Capital Normal University, Beijing 100037, People's Republic of China
² State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
³ College of Life Sciences, Heibei University, Baoding 071002, People's Republic of China

Correspondence
Wei Song
songwei{at}mail.cnu.edu.cn
Zhiheng Liu
zhliu{at}sun.im.ac.cn

A Gram-positive, rod-shaped, non-motile bacterium, designated strain wged11^T, was isolated from the root of ginseng, and its taxonomic position was established using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequences showed that this organism formed a robust clade with recognized species of the genus Leifsonia. Strain wged11^T was characterized by a high content of -cyclohexylundecanoic and anteiso- and iso-branched saturated fatty acids, MK-11 as the major menaquinone and DL-2,4-diaminobutyric acid in its cell-wall peptidoglycan. The DNA G+C content of strain wged11^T was 66.4 mol%. Levels of similarity between the 16S rRNA gene sequence of strain wged11^T and those of the type strains of other members of the genus Leifsonia ranged from 94.7 to 97.6 %. The mean level of DNA–DNA relatedness between strain wged11^T and Leifsonia poae DSM 15202^T, its nearest phylogenetic neighbour, was 35.3 %. Based on these findings, strain wged11^T (=CGMCC 4.3491^T=JCM 13908^T) is proposed as the type strain of a novel species of the genus Leifsonia, Leifsonia ginsengi sp. nov.

A table comparing carbon source utilization between strain wged11^T and recognized species of the genus Leifsonia is available as supplementary material in IJSEM Online.

These authors contributed equally to this work.

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