Mode of action of rice allelochemical, momilactone on the allelopathic activity

水稻化感物质莫米内酯对化感活性的作用方式

• 批准号: 22380016
• 负责人: KATO-NOGUCHI Hisashi
• 金额: $ 8.49万
• 依托单位: Kagawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010-04-01 至 2013-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22380016/
• 关键词: ｱﾚﾛﾊﾟｼｰ; イネ; モミラクトン; 作用機構; 雑草抑制; シロイヌナズナ; 成長抑制; タンパク質発現; アレロパシー; タンパク質; 二次元電気泳動; ジベレリン変異体

Large field screening programs and laboratory experiments in many countries have indicated that rice is allelopathic and releases allelochemical(s) into its environment. A number of compounds have been identified as potential rice allelochemicals. However, we found that the labdane-related diterpenoid momilactone A and B are probably the most important rice allelochemicals. Rice plants secreted momilactone A and B from their roots into the neighboring environments over their entire life cycle at phytotoxic levels, and momilactone B seems to account for the majority of the observed rice allelopathy. In addition, genetic studies have shown that momitlactones do not affect the expression of gibberellin related gens. However, there were some momilactone insensitive and hyper-sensitive mutants in SALK T-DNA Insertion line of Arabidopsis. In addition, momitactone A and B affected the protein expressions in Arabidopsis related to glycolysis and removal of reactive oxygen species.

许多国家的大规模田间筛选计划和实验室实验表明，水稻具有化感作用，并向环境中释放化感物质。一些化合物已被确定为潜在的水稻化感物质。然而，我们发现，与劳丹烷相关的二萜类蜜内酯A和B可能是最重要的水稻化感物质。水稻植株在其整个生命周期中以植物毒性水平从其根部向邻近环境中分泌毛豆内酯A和B，并且毛豆内酯B似乎占所观察到的水稻化感作用的大部分。此外，遗传学研究表明，momitlactones不影响赤霉素相关基因的表达。然而，在拟南芥SALK T-DNA插入系中存在一些对豆蔻内酯不敏感和超敏感的突变体。此外，苦米内酯A和B还影响了拟南芥糖酵解和活性氧清除相关蛋白的表达。

项目成果

Absorption of momilactone A and B by Arabidopsis thaliana L. and the growth inhibitory effects

• DOI: 10.1016/j.jplph.2012.05.022
• 发表时间: 2012-10-15
• 期刊: JOURNAL OF PLANT PHYSIOLOGY
• 影响因子: 4.3
• 作者: Kato-Noguchi, Hisashi;Ota, Katsumi;Kujime, Hiroya
• 通讯作者: Kujime, Hiroya

Rice and barnyard grass interaction

水稻与稗草的相互作用

• 发表时间: 2011
• 作者: Akira Yamauchi;Mana Kano-Nakata;Yoshiaki Inukai;Roel R. Suralta;Jonathan M. Niones;Emi Kameoka and Daniel M. Menge;Kato-Noguchi H.
• 通讯作者: Kato-Noguchi H.

The chemical cross talk between rice and barnyardgrass

• DOI: 10.4161/psb.6.8.15869
• 发表时间: 2011-08
• 期刊: Plant Signaling & Behavior
• 影响因子: 2.9
• 作者: H. Kato‐Noguchi

Molecular evolution of momilactone A and B

莫米内酯 A 和 B 的分子进化

• 发表时间: 2013
• 作者: 天野寿紀;豊福恭子;松波麻耶;森田弘彦;小川敦史;Kato-Noguchi H.
• 通讯作者: Kato-Noguchi H.

Rice allelopathy and momilactone A and B (Chapter 8) In : Behavioral and Chemical Ecology

水稻化感作用和莫米内酯 A 和 B（第 8 章）：行为和化学生态学

• 发表时间: 2010
• 作者: Kato-Noguchi;H.
• 通讯作者: H.