Mechanism of drought tolerance of regume

植物的耐旱机制

• 批准号: 23380013
• 负责人: IWAYA-INOUE Mari
• 金额: $ 12.15万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23380013/
• 关键词: 転流; オートファジー; 乾燥ストレス; ササゲ; ダイズ; 窒素; 乾燥; 糖; 栄養転流; 老化; 糖転流

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.

豆科作物的叶片衰老往往伴随着籽粒的灌浆和成熟，因为营养物质从源器官到库器官的有效转运是高产的必要条件。脱荚处理抑制了豇豆生殖期叶片的衰老。生殖期干旱胁迫对豇豆叶片衰老和种子成熟均有促进作用。干旱胁迫还会使叶片糖含量短暂升高，进而显著促进叶片向种子的糖转运。这些结果表明，叶片衰老受叶片、茎和豆荚等器官间糖转运状态的影响。结果表明，自噬相关基因（ATGs）参与了豇豆叶片衰老过程，该过程首先受糖营养调控。此外，活性氧处理提高了大豆叶片的抗旱性。

项目成果

ササゲの子実肥大期における乾燥ストレスに伴う老化調節メカニズムの解析

豇豆籽粒膨大期干旱胁迫相关衰老调控机制分析

• 发表时间: 2012
• 作者: 金子彩実;et al
• 通讯作者: et al

Hydrogen peroxide spraying alleviates drought stress in soybean plants

• DOI: 10.1016/j.jplph.2011.02.003
• 发表时间: 2011-09-01
• 期刊: JOURNAL OF PLANT PHYSIOLOGY
• 影响因子: 4.3
• 作者: Ishibashi, Yushi;Yamaguchi, Haruka;Zheng, Shao-Hui
• 通讯作者: Zheng, Shao-Hui

Induction of a bZIP type transcription factor and amino acid catabolism-related genes in soybean seedling in response to starvation stress.

大豆幼苗响应饥饿胁迫时诱导 bZIP 型转录因子和氨基酸分解代谢相关基因。

• DOI: 10.1155/2013/935479
• 发表时间: 2013
• 期刊: J. Bot.
• 作者: Yuasa;T.;Nagasawa;K.;Osanai;A.;Kaneko;A.;Tajima;D.;Nang;MPSH.;Ishibashi;Y. and Iwaya-Inoue;M.
• 通讯作者: M.

Leaf Senescence of Soybean at Reproductive Stage is Associated with Induction of Autophagy-related Genes, GmATG8c, GmATG8i and GmATG4

• DOI: 10.1626/pps.14.141
• 发表时间: 2011-04-01
• 期刊: PLANT PRODUCTION SCIENCE
• 影响因子: 2.5
• 作者: Htwe, Nang Myint Phyu Sin;Yuasa, Takashi;Iwaya-Inoue, Mari
• 通讯作者: Iwaya-Inoue, Mari

ササゲの子実肥大期における葉の老化機構の解析

豇豆籽粒膨大期叶片衰老机制分析

• 发表时间: 2013
• 作者: 金子彩実;野口英里;石橋勇志;湯淺高志;井上眞理
• 通讯作者: 井上眞理