Role of soybean aquaporins in inhibition of water uptake under flooding

2015 Fiscal Year Final Research Report

• Project/Area Number: 25450031
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Crop production science
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: Ishikawa Junko 国立研究開発法人農業・食品産業技術総合研究機構, 次世代作物開発研究センター稲研究領域, 主任研究員 (40343959)
• Co-Investigator(Kenkyū-buntansha): MURAI Mari 国立研究開発法人農業・食品産業技術総合研究機構, 東北農業研究センター生産環境研究領域, 上級研究員 (00343971)
• Co-Investigator(Renkei-kenkyūsha): MATSUO Naoki 国立研究開発法人農業・食品産業技術総合研究機構, 九州沖縄農業研究センター水田作研究領域, 主任研究員 (40579992) ; JITSUYAMA Yutaka 北海道大学, 大学院農学研究院, 講師 (90322841)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 植物 / ダイズ / アクアポリン / 湿害

Outline of Final Research Achievements

Soybean is generally susceptible to flooding. In Japan, flooding is a serious problem, because soybeans are often cultivated in the fields converted from paddy fields. Understanding mechanism of the flooding susceptibility is important for developing tolerant genotypes. In the present study, we investigated role of aquaporins in inhibition of water uptake under the flooding. Aquaporins play key roles in regulation of water uptake from the roots. We demonstrated that submerging treatment decreased gene expression of nine major root aquaporins. It suggests that the decrease in the aquaporin expression is a contributing factor in inhibition of water uptake from the roots of submerged plants.

Free Research Field

農学