Gymnodinialimonas hymeniacidonis sp. nov., Gymnodinialimonas mytili sp. nov., and Gymnodinialimonas ulvae sp. nov., isolated from marine organisms

서지정보

· 발행기관 : 한국미생물학회
· 수록지 정보 : 미생물학회지 / 60권 / 4호 / 253 ~ 263페이지
· 저자명 : 신지윤, 김경현, 박진숙

초록

Three Gram-stain-negative, non-motile, rod-shaped bacteria, designated 202GB13-11T, 2305UL16-5T, and 2307UL20-7T were isolated from marine organisms (sponge, mussel, and algae) collected from the coasts of Busan and Ulleungdo, Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that these strains formed a monophyletic group within the genus Gymnodinialimonas and showed the highest similarity to Gymnodinialimonas ceratoperidinii J12C1-MA-4T with 97.3%, 97.0%, and 96.2%, respectively.
Optimal growth occurred at 28–30°C, 2–3% NaCl, and pH 7–8.
Ubiquinone-10 was the predominant respiratory quinone, and summed feature 8 (comprising C18:1 ω6c and/or C18:1 ω7c) was the major cellular fatty acid. The primary polar lipids consisted of phosphatidylglycerol, phosphatidylcholine, unidentified phospholipids, unidentified aminolipids, and unidentified lipids. The DNA G + C contents of strains 202GB13-11T, 2305UL16-5T, and 2307UL20-7T were 60.8%, 60.6%, and 63.0%, respectively. Average nucleotide identity and digital DNA-DNA hybridization values between these strains and reference strains ranged from 70.7–79.6% and 13.0–35.7%, respectively. Based on phylogenetic, genomic, and chemotaxonomic features, strains 202GB13-11T, 2305UL16-5T, and 2307UL20-7T represent three novel species within the genus Gymnodinialimonas. The proposed names are Gymnodinialimonas hymeniacidonis sp. nov., (202GB13-11T = KACC 23695T = JCM 37088T), Gymnodinialimonas mytili sp. nov., (2305UL16-5T = KACC 23693T = JCM 37091T), and Gymnodinialimonas ulvae sp. nov., (2307UL20-7T = KACC 23694T = MCCC 1K09527T).

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