Effect of Auxin on ethylene biosynthesis of peach fruit ripening

生长素对桃果实成熟乙烯生物合成的影响

• 批准号: 22580044
• 负责人: TATSUKI Miho
• 金额: $ 2.91万
• 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 Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22580044/
• 关键词: 果樹; オーキシン; エチレン; モモ; 果実軟化; 果実成熟

The fruit of stony hard peach cultivars do not soften and produce little ethylene due to low expression of PpACS1. The IAA concentration increased suddenly just before harvest time in melting flesh peaches. In contrast, the IAA concentration did not increase in stony hard peaches. These observations indicate that suppression of PpACS1 expression at the late-ripening stage of stony hard peach may result from a low level of IAA, and a high concentration of IAA is required to generate a large amount of system 2 ethylene in peaches.

由于PpACS1的低表达，石硬桃品种的果实不软化，产生很少的乙烯。果肉化桃的IAA浓度在采收前突然升高。与此相反，IAA浓度并没有增加，在石硬桃。这些观察结果表明，抑制PpACS1的表达在晚熟阶段的石硬桃可能会导致从低水平的IAA，和高浓度的IAA是需要产生大量的系统2乙烯在桃。

项目成果

Increased levels of IAA are required for system 2 ethylene synthesis causing fruit softening in peach (Prunus persica L. Batsch).

• DOI: 10.1093/jxb/ers381
• 发表时间: 2013-02
• 期刊: Journal of experimental botany
• 影响因子: 6.9
• 作者: Tatsuki M;Nakajima N;Fujii H;Shimada T;Nakano M;Hayashi K;Hayama H;Yoshioka H;Nakamura Y
• 通讯作者: Nakamura Y

果実の鮮度保持剤

水果保鲜剂

• 发表时间: 2013