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HOME > J. Microbiol > Volume 55(5); 2017 > Article
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Azohydromonas riparia sp. nov. and Azohydromonas ureilytica sp. nov. isolated from a riverside soil in South Korea
Tuan Manh Nguyen 1,2, Jaisoo Kim 1
Journal of Microbiology 2017;55(5):330-336.
DOI: https://doi.org/10.1007/s12275-017-6519-z
Published online: January 26, 2017
1Department of Life Science, College of Natural Sciences, Kyonggi University, Suwon 16227, Republic of Korea, 2Thai Nguyen University of Agriculture and Forestry, Quyet Thang Commune, Thai Nguyen City, Vietnam1Department of Life Science, College of Natural Sciences, Kyonggi University, Suwon 16227, Republic of Korea, 2Thai Nguyen University of Agriculture and Forestry, Quyet Thang Commune, Thai Nguyen City, Vietnam
Corresponding author:  Jaisoo Kim , Tel: +82-31-249-9648, 
Received: 12 October 2016   • Revised: 27 December 2016   • Accepted: 28 December 2016
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Abstract

White and pale yellow coloured bacteria were isolated from the riverside soil, Daejeon, South Korea, and were designated UCM-11T, UCM-F25, and UCM-80T. We found that all strains were able to reduce nitrate, and the cells were aerobic and motile. The DNA G+C contents of UCM-11T, UCM-F25, and UCM-80T were between 68.9 to 71.2 mol% and the main ubiquinone was observed as Q-8. Based on16S rRNA gene sequences, strains UCM-11T and UCM-F25 were found to closely match with Azohydromonas australica IAM 12664T (98.48–98.55%), and the strain UCM-80T was the closest match with Azohydromonas lata IAM 12599T (98.34%). The presence of summed feature 3 (C16:1ω7c and/or C16:1ω6c), C16:0, summed feature 8 (C18:1ω7c and/or C18:1ω6c) as well as twokinds of hydroxyfatty acids consisting of C10:0 3-OH and C12:0 2-OH, and branched fatty acids containing C16:0 iso and C17:0 cyclo were detected in all the strains. Phosphatidy-lethanolamine was a major polar lipid. DNA–DNA related-ness confirmed UCM-11T, UCM-F25 and UCM-80T as novel members of the genus Azohydromonas. Based on the mor-phological, physiological, biochemical and genotypic char-acteristics, we suggest that strains UCM-11T, UCM-F25, and UCM-80T represent novel species within the genus Azohy-dromonas. The names Azohydromonas riparia sp. nov., and Azohydromonas ureilytica sp. nov. are proposed for the type strains UCM-11T (=KACC 18570T =NBRC 111646T) and UCM-80T (=KACC 18576T =NBRC 111658T), respectively.

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    Azohydromonas riparia sp. nov. and Azohydromonas ureilytica sp. nov. isolated from a riverside soil in South Korea
    J. Microbiol. 2017;55(5):330-336.   Published online January 26, 2017
    DOI: https://doi.org/10.1007/s12275-017-6519-z
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