Development of new cut flower crops through regulating the signal transduction and mechanisms of hypersensitive physiological disorders after harvest

通过调节收获后过敏性生理紊乱的信号转导和机制开发新的切花作物

• 批准号: 19580027
• 负责人: DOI Motoaki
• 金额: $ 3.08万
• 依托单位: Shinshu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19580027/
• 关键词: カンナ; 切断; 葉面電位; クロロフィル蛍光; 量子収率; 褐変障害; 光酸素ストレス; 活性酸素消去系; 光酸素ストレ; 活性酸素; スーパーオキシドディスムターゼ; アスコルビン酸ペルオキシダーゼ; 収穫; 過敏感反応; シグナル伝達; クロロフル蛍光

With a view to developing new cut flower crops, we investigated the postharvest characteristics of canna leaves. The leaf electric potential decreased rapidly after harvest, suggesting that the electric signal caused inrolling and necrotic disorders of leaves. The occurrence of necrotic disorder was accompanied by a decrease in quantum yield. The old leaves harvested at noon exhibited severe disorders, while the young leaves harvested before sunrise rarely did. In these young leaves, the scavenging capacity of active oxygen, such as ascorbate peroxidase activity, was higher than that of old leaves.

为了开发新的切花作物，我们研究了Canna叶子的后期特征。收获后，叶子电势迅速降低，表明电信号引起了叶子的不卷和坏死性疾病。坏死障碍的发生伴随着量子产率的降低。中午收获的旧叶子表现出严重的疾病，而在日出之前收获的幼叶很少。在这些幼叶中，活性氧的清除能力（例如抗坏血酸过氧化物酶活性）高于旧叶子。

项目成果

カンナ葉の収穫に伴う葉面電位の変化と障害発生

采收美人蕉叶造成的叶势变化和损害

• 发表时间: 2008
• 作者: 廣瀬望;滝澤陽子;土井元章
• 通讯作者: 土井元章

Postharvest photooxidative disorders in canna leaves

美人蕉叶采后光氧化紊乱

• 发表时间: 2010
• 作者: Doi;M.;M. Wakita;Y. Takizawa;N. Hirose;M. Hosokawa
• 通讯作者: M. Hosokawa