Behavior of environmental bacteria in microbial community and oligotrophic growth state

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K14877
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Applied microbiology
• Research Institution: Tohoku University
• Principal Investigator: Nagata Yuji 東北大学, 生命科学研究科, 教授 (30237531)
• Co-Investigator(Kenkyū-buntansha): 津田 雅孝 東北大学, 生命科学研究科, 教授 (90172022) ; 大坪 嘉行 東北大学, 生命科学研究科, 准教授 (40342761)
• Research Collaborator: KATO HIROMI 東北大学, 大学院生命科学研究科, 助教 (90727265)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: oligotroph / 複合生物系 / 炭酸固定

Outline of Final Research Achievements

We studied on behavior of environmental bacteria in microbial community and oligotrophic growth state by using a bacteria degrading recalcitrant organochlorine insecticide and a microbial community from which the bacterial strain was isolated as models. We showed (i) the importance of non-degrading bacterial strains in the community and (ii) the generality of the phenomenon that environmental bacteria can grow on the solid minimal salt medium without addition of any carbon source accompanying CO2 fixation by expression of the alcohol dehydrogenase gene, and obtained a lot of knowledge leading to the elucidation of the mechanisms of these phenomena. A theoretical foundation for the practical application of bacteria in real environments has been established.

Free Research Field

応用微生物学