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外源BR通过抑制pectin降解酶基因延迟了桃子水果的软化

Jianzhao Li^1,2, Tingting Guo^1,2, Meiling Guo^1,2

¹The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong, China.

Frontiers in plant science

|August 21, 2023

概括

铜类固醇 (BRs) 通过保持坚硬性和抑制点氨酸降解,有效地延缓桃花的衰老. 这项研究确定10μM BR是延长桃子存储寿命的最佳方法.

科学领域:

植物生理学植物生理学
收获后生物学收获后生物学
园艺科学园艺科学

背景情况:

在室温下储存期间,桃子水果的质量迅速下降.
铜类固醇 (BRs) 对植物发育和水果质量维护至关重要.
有限的研究存在于BRs对收获的桃子果实衰老的影响.

研究的目的:

为了研究类固醇 (BRs) 对延迟桃花老化的作用.
确定最佳的BR度,以延长桃子的保质期.

主要方法:

桃子果实 (Hongniang) 接受了不同度的BR的治疗.
评估了水果坚硬度,乙烯释放,pectin分数 (WSP,ISP,CBP) 和pectin降解酶活动.
分析了与衰老相关的关键基因的基因表达 (例如,PPPME1/3,PPPG,PPARF2,PPGAL2/16,PPBES1-5/6).

主要成果:

10μM BR显著延迟了桃子果的衰老.
BR处理保持了水果的坚硬度,减少了乙烯的产生,并改变了点的组成.
BR抑制了pectin降解酶活性和老化相关基因的表达,包括由BES1调节的基因.

结论:

铜类固醇 (BRs) 有效地延迟了桃花的衰老,并延长了收获后的保质期.
BRs可能通过调节pectin代谢和调节特定的基因表达途径来发挥其作用.
这项研究突出了BRs作为提高桃子质量和寿命的收获后处理的潜力.

关键词:

在这里,我们将会看到BR BR BR BR.这就是PpBES1s.桃子桃子桃子质素 (pectin) 是一种质素.软化软化软化

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