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논문 기본 정보

자료유형
학술저널
저자정보
Woo Chae Yung (Department of Life Science College of Natural Sciences Kyonggi University Suwon 16227 Republic of K) 김재수 (경기대학교)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제32권 제7호
발행연도
2022.7
수록면
855 - 861 (7page)
DOI
10.4014/jmb.2205.05018

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A white-pigmented, non-motile, gram-negative, and rod-shaped bacterium, designated CYS-02T, was isolated from soil sampled at Suwon, Gyeonggi-do, Republic of Korea. Cells were strictly aerobic, grew optimally at 20-28ºC and hydrolyzed Tween 40. Phylogenetic analysis based on 16S rRNA gene sequence indicated that strain CYS-02T formed a lineage within the family Comamonadaceae and clustered as members of the genus Variovorax. The closest members were Variovorax guangxiensis DSM 27352T (98.6% sequence similarity), Variovorax paradoxus NBRC 15149T (98.5%), and Variovorax gossypii JM-310T (98.3%). The principal respiratory quinone was Q-8 and the major polar lipids contain phosphatidylethanolamine (PE), phosphatidylethanolamine (PG), and diphosphatidylglycerol (DPG). The predominant cellular fatty acids were C16:0, summed feature 3 (C16:1ω7c and/or C16:1ω6c) and summed feature 8 (C18:1ω7c and/or C18:1ω6c). The DNA GC content was 67.7 mol%. The ANI and dDDH values between strain CYS-02T and the closest members in the genus Variovorax were ≤ 79.0 and 22.4%, respectively, and the AAI and POCP values between CYS-02T and the other related species in the family Comamonadaceae were > 70% and > 50%, respectively. The genome of strain CYS-02T showed a putative terpene biosynthetic cluster responsible for antioxidant activity which was supported by DPPH radical scavenging activity test. Based on genomic, phenotypic and chemotaxonomic analyses, strain CYS-02T was classified into a novel species in the genus Variovorax, for which the name Variovorax terrae sp. nov., has been proposed. The type strain is CYS-02T (= KACC 22656T = NBRC 00115645T).

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