Involvement of genistein-inducible Bradyrhizobium japonicum TetR family early in the interaction with Glycine max (L.) Merr

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07346
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Applied microbiology
• Research Institution: Obihiro University of Agriculture and Veterinary Medicine
• Principal Investigator: Ohwada Takuji 帯広畜産大学, 畜産学部, 教授 (90211804)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: TetR family / 多剤排出ポンプ / ゲニステイン / ダイズ根粒菌 / 相利共生

Outline of Final Research Achievements

The genistein-specific induction of Bradyrhizobium japonicum TetR family structural genes was caused by a repressor function. The multidrug efflux pump of the TetR family could be induced early in the symbiosis and functionally regulate the expression profiles of symbiosis genes by adjusting the intracellular genistein concentration by its efflux having cytotoxicity. The results showed a new paradigm that TetR family plays an important role in symbiosis.

Free Research Field

応用微生物学