Two novel acetogenic bacteria from Eulsukdo a delta island in Korea

Title
Two novel acetogenic bacteria from Eulsukdo a delta island in Korea
Author(s)
Yu, Jihyun; Yang, Jeongan; Park, Mi Jeong; Kim, Yun Jae; Lim, Jae Kyu; Kang, Sung Gyun; Lee, Hyun Sook; Lee, Jung Hyun; Kwon, Kae Kyoung
KIOST Author(s)
Yu, Ji Hyun(유지현)Yang, Jeongan(양정안)Park, Mi Jeong(박미정)Kang, Sung Gyun(강성균)Lee, Hyun Sook(이현숙)Lee, Jung Hyun(이정현)Kwon, Kae Kyoung(권개경)
Publication Year
2020-11-16
Abstract
An anaerobic, mesophilic, chemolithoautotrophic, and acetogenic bacterial strains ES2 and ES3 were isolated from sediment of Eulsukdo, a delta island in South Korea. The 16S rRNA gene sequence analysis revealed that strains ES2 and ES3 were most closely related to Acetobacterium fimetarium (96.8% and 97.0%, respectively) and each other showed 97.9% similarity. Both strains clustered in coherent branch and were phylogenetically located between the genera Acetobacterium and Eubacterium. Physiologically the two strains were mesophilic but showed difference in optimum pH and salinity for growth; those of ES2 were pH 7.8 and 0.5% NaCl and ES3 were pH 6.8 and 2.5% NaCl. The DNA G+C content of the strains ES2 and ES3 was 39.6-40.7 mol%. The genome size of the strains ES2 and ES3 was 3.76 Mbp and 3.39 Mbp, respectively. Both the strains ES2 and ES3 could grow with CO2/H2, CO, and formate as the sole sources of carbon and energy. Genomic evidence for the Wood-Ljungdahl pathway in both the strains reflects chemolithoautotrophic growth. Synteny analysis revealed that genome arrangement of two novel strains were close to Acetobacterium woodii than Eubacterium limosum.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/39547
Bibliographic Citation
International Union of Microbiological Societies Congresses (IUMS 2020), 2020
Publisher
International Union of Microbiological Societies
Type
Conference
Language
English
Publisher
International Union of Microbiological Societies
Related Researcher
Research Interests

marine biotechnology,molecular microbiology,해양생명공학,분자미생물학

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