The mechanism how endodormancy is maintained in Rosaceae fruit trees-possible roles of sorbitol in inhibiting the resumption of bud growth

蔷薇科果树休眠维持机制——山梨醇抑制芽恢复的可能作用

• 批准号: 21780031
• 负责人: ITO Akiko
• 金额: $ 2.75万
• 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 Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21780031/
• 关键词: 果樹; 園芸学

In order to elucidate the possible roles of carbohydrate in Japanese pear(Pyrus pyrifolia,'Kosui') during endodormancy, seasonal changes of carbohydrate concentrations and the activities of sorbitol-and sucrose-metabolizing enzymes were investigated in the lateral flower buds and current shoots. We found that sorbitol and sucrose metabolisms in these tissues changed drastically during endodormancy phase, and thus assume that pear flower buds regulate endodormancy by modulating the systems for sorbitol-and sucrose-catabolism depending on the dormancy stage. We also discuss the possible inhibitory effect of sorbitol on flower bud growth during endodormancy.

为探讨碳水化合物在日本梨（Pyrus pyrifolia，'Kosui'）休眠过程中的作用，研究了梨侧芽和现生枝中碳水化合物含量及蔗糖和丁醇代谢相关酶活性的季节变化。我们发现，山梨糖醇和蔗糖代谢在这些组织中发生了巨大变化，在休眠阶段，因此假设梨花芽调节内休眠的调节系统的山梨糖醇和蔗糖catenase取决于休眠阶段。我们还讨论了山梨醇对内休眠期花芽生长的抑制作用。

项目成果

低温要求性バラ科落葉樹の自発休眠覚醒期判定方法

耐低温落叶蔷薇科树木自发休眠觉醒期的测定方法

• 发表时间: 2011

Carbohydrate metabolism and its possible roles in endodormancy transition in Japanese pear

• DOI: 10.1016/j.scienta.2012.07.009
• 发表时间: 2012-09-06
• 期刊: SCIENTIA HORTICULTURAE
• 影响因子: 4.3
• 作者: Ito, Akiko;Sakamoto, Daisuke;Moriguchi, Takaya
• 通讯作者: Moriguchi, Takaya

低温要求性落葉樹の自発休眠覚醒期判定方法

耐低温落叶乔木自发休眠觉醒期的确定方法

• 发表时间: 2012

低温要求性バフ科落葉樹の自発休眠覚醒期判定方法

耐低温落叶乔木自发休眠觉醒期的确定方法

• 发表时间: 2011