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斯特里戈拉克 (GR24) 通过改变 ABA 生物合成来调节 yft3 番茄的果实成熟

Muhammad Naeem¹, Rong Han¹, Anran Xu¹

¹Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Joint Tomato Research Institute, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.

Plant science : an international journal of experimental plant biology

|March 31, 2025

概括

斯特里戈拉克顿类似GR24和酸 (ABA) 处理加速番茄果实成熟和颜色的发展. GR24显著增强乙烯生产和胡卜素积累,特别是在yft3突变体中,改善水果质量.

科学领域:

植物生理学植物生理学
分子生物学分子生物学
园艺科学园艺科学

背景情况:

番茄果实成熟是一个由激素和分子通路调节的复杂过程.
由胡卜素积累驱动的颜色发育是成熟的一个关键指标.
荷尔蒙交叉,包括酸 (ABA) 和排球活体,影响成熟.

研究的目的:

研究外源ABA和GR24对番茄果实成熟,乙烯排放,胡卜素生物合成,ABA代谢和染色体发育的影响.
为了比较yft3突变和野生类型 (cv. M82) 番茄,西红,西红,西红,西红.
阐明GR24和ABA在调节这些过程中的作用.

主要方法:

在不同发育阶段 (35,47,54天后) 向番茄果实施加ABA,GR24和水.
对水果成熟,乙烯排放,胡卜素含量和与胡卜素和ABA代谢相关的基因表达的分析.
染色体发育的超结构分析.

主要成果:

在yft3和cv中,GR24显著加快了成熟和颜色的发展. M82番茄. 在这里.
GR24增加了乙烯排放和升级了与乙烯相关的基因,在yft3中具有更高的敏感性.
两种ABA和GR24治疗都改变了ABA代谢,并诱导了与胡卜素相关的基因表达,GR24促进了染色体分化.

结论:

GR24是番茄果实成熟的有力调节剂,通过乙烯和胡卜素路径增强色彩发育.
ABA和GR24影响ABA代谢和胡卜素积累,影响水果的质量.
在yft3突变体中,GR24的影响更为明显,这表明它在strigolactone信号通路中发挥了作用.

关键词:

亚酸 (ABA) 是一种酸.胡卜素是一种胡卜素.乙烯乙烯是一种斯特里戈拉克 (GR24) 是一种强性酸盐.番茄的成熟过程

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