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HOME > J. Microbiol > Volume 56(7); 2018 > Article
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Flavihumibacter profundi sp. nov., isolated from eutrophic freshwater sediment
Ting-Ting Ren 1, Chun-Zhi Jin 2,3, Feng-Jie Jin 1, Taihua Li 1, Chang-Jin Kim 2,3, Hee-Mock Oh 4, Hyung-Gwan Lee 4, Long Jin 1
Journal of Microbiology 2018;56(7):467-471.
DOI: https://doi.org/10.1007/s12275-018-7567-8
Published online: June 28, 2018
1College of Biology and the Environment, Co-Innovation Centre for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, P. R. China, 2Industrial Biomaterial Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea, 3Department of Bio-Molecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea, 4Cell Factory Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
Corresponding author:  Long Jin , Tel: +86-25-8542-7210, 
Received: 28 December 2017   • Revised: 30 April 2018   • Accepted: 1 May 2018
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Abstract

A Gram-stain-positive, aerobic, non-motile, non-spore-forming, and rod-shaped bacterium, designated strain CHu64- 6-1T, was isolated from a 67-cm-long sediment core collected from the Daechung Reservoir at a water depth of 17-m in Daejeon, Republic of Korea. Comparative 16S rRNA gene sequence studies placed the new isolate in the class Sphingobacteriia, and the isolate is notably most closely related to Flavihumibacter sediminis CJ663T (98.1% similarity), Flavihumibacter solisilvae 3-3T (97.8%), Flavihumibacter petaseus T41T (97.5%), Flavihumibacter cheonanensis WS16T (97.4%), and Flavihumibacter stibioxidans YS-17T (97.2%). The cells of strain CHu64-6-1T formed yellow colonies on R2A agar and contained MK-7 as the only menaquinone, phosphatidylethanolamine, an unidentified phospholipid, and two unidentified aminolipids as the major polar lipids, and C15:0 iso, C17:0 iso 3-OH, C15:1 iso G, and C16:1 ω5c as the major fatty acids (> 5%). The DNA G + C content of the genome was determined to be 46.5 mol%. The DNA-DNA hybridization values of strain CHu64-6-1T with F. sediminis CJ663T, F. solisilvae 3-3T, F. petaseus T41T, F. cheonanensis WS16T, and F. stibioxidans YS-17T were 12.4–33.2%. Based on the combined genotypic and phenotypic data, we propose that strain CHu64-6-1T represents a novel species of the genus Flavihumibacter, for which the name Flavihumibacter profundi sp. nov. is proposed. The type strain is CHu64-6-1T (= KCTC 62290T = CCTCC AB 2018060T).

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    Flavihumibacter profundi sp. nov., isolated from eutrophic freshwater sediment
    J. Microbiol. 2018;56(7):467-471.   Published online June 28, 2018
    DOI: https://doi.org/10.1007/s12275-018-7567-8
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