2013 Fiscal Year Final Research Report
Mechanism of drought tolerance of regume
| Project/Area Number |
23380013
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Crop science/Weed science
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| Research Institution | Kyushu University |
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Principal Investigator |
IWAYA-INOUE Mari 九州大学, (連合)農学研究科(研究院), 教授 (60091394)
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| Co-Investigator(Kenkyū-buntansha) |
YUASA Takashi (40312269)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 転流 / オートファジー / 乾燥ストレス / ササゲ / ダイズ |
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| Research Abstract |
Leaf senescence of legume crops is often accompanied with the grain filling and maturation at the reproductive stage, because efficient nutrient translocation from source organs to the sink organs is essential for high yield. The leaf senescence of cowpea at the reproductive stage was suppressed by depodding treatment. Drought stress on cowpea at the reproductive stage enhanced both leaf senescence and seed maturation. Drought stress also transiently increased sugar contents in leaf and then significantly enhanced sugar translocation from leaves to seeds. These results suggest that the leaf senescence was affected by a status of sugar translocation among organs such as leaves, stems, and pods. It was indicated that autophagy- related genes (ATGs) was involved in leaf senescence of cowpea firstly regulated by sugar nutrient. In addition, ROS treatmenttoleaves enhanced drought tolerance of soybean.
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[Presentation] マメ科作物ササゲの乾燥に応答した花成調節の分子メカニ ズ ム の 解 析2012
Author(s)
今村雅和, 金子彩実, 野口英里, 坂本貴浩, 内八重愛, 橋口祐也, 倉内英梨子, 有村恵, 石橋勇志, 湯淺高志, 井上眞理
Organizer
日本植物細胞分子生物学会
Place of Presentation
奈良先端大学, 奈良県
Year and Date
2012-08-03
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