Roles of water and solutes related to hypertrophy of lodicules atflowering.

水和溶质的作用与开花时浆片肥大有关。

• 批准号: 23658020
• 负责人: KOIKE Setsuo
• 金额: $ 1.58万
• 依托单位: National Agriculture and Food Research Organization
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23658020/
• 关键词: イネ; 開穎; 鱗被; 肥大; 溶質; 糖; 無機塩

Fructose and glucose as sugars and potassium and chloride as major inorganic ions were revealed as major solute components and osmotic substances related to the hypertrophy of lodicules. Fructose and glucose were increased their contents four to five times higher compared with one hour before flowering. Soluble invertase activities measured at pH5.0 were ten times higher than those at pH7.0. Consequently, accumulations of fructose and glucose in the lodicules at flowering mightbe resulted from acidic invertase activities in the vacuoles of lodicules.

果糖和葡萄糖为糖，钾和氯为主要无机离子，是与鳞片肥大有关的主要溶质组分和渗透物质。果糖和葡萄糖的含量比开花前1小时增加了4~5倍。在pH值为5.0的条件下测得的可溶性转化酶活性是在pH值为7.0时的10倍。因此，开花时鳞片中果糖和葡萄糖的积累可能是由于鳞片液泡中的酸性转化酶活性所致。

项目成果

イネ鱗被溶質および酵素活性の開穎前後の変動

开颖前后稻鳞溶质及酶活性的变化

• 发表时间: 2012
• 作者: 小池説夫;青木和彦;渡辺江利子;山口知哉;林高見
• 通讯作者: 林高見

開花期イネ鱗被抽出液の溶質成分

水稻花期鳞片提取物溶质成分

• 发表时间: 2012
• 作者: 小池説夫;青木和彦;渡辺江利子;山口知哉;林高見
• 通讯作者: 林高見