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发育调节的系统信号的产生,用于番茄中长期的防御化

Katie Stevens¹, Michael R Roberts², Katie Jeynes-Cupper¹

¹School of Biosciences, University of Birmingham, Birmingham, B15 2TT, UK.

The New phytologist

|November 20, 2024

概括

用β-氨基黄油酸 (BABA) 进行番茄植物的原始化,可以诱导长期抵抗Botrytis cinerea. 这种耐药性是系统性的和遗传性的,由小RNAs介导,提供持久的作物保护策略.

科学领域:

植物病理学植物病理学
分子生物学分子生物学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

番茄产量受到Botrytis cinerea的威胁,需要替代有毒农药.
植物原始化提供了一种可持续的策略,用于诱导对病原体的耐药性.
了解诱导耐药性的机制对于开发持久的作物保护至关重要.

研究的目的:

调查β-氨基黄油酸 (BABA) 在诱导番茄中长期耐药性对*Botrytis cinerea*的有效性.
描述与BABA诱导的耐药性相关的表观遗传和遗传变化.
为了确定诱导的电阻是否是系统性的和可传播的.

主要方法:

番茄植物在不同的发育阶段用BABA进行了治疗.
对 *B. cinerea* 的耐药性在水果和后代中进行了评估.
进行了DNA甲基化和RNA测序.
移植实验和小RNA测序被用来分析系统信号.

主要成果:

BABA治疗诱导了耐药性,特别是在幼苗中,而不是在水果中.
在BABA治疗的幼苗中,DNA甲基化模式发生了变化.
诱导的阻力从原始的根茎传递给未原始的树枝.
移动的24nt小RNA被识别在阴茎中,与感染期间的原始基因表达有关.

结论:

在番茄中,BABA初始化会诱导一种长期的系统性耐药性.
一个系统信号,可能涉及移动小RNA,介导这种阻力.
已识别的表观遗传标记为番茄和其他作物提供了持久耐药性的目标.

关键词:

这种植物是Botrytis cinerea.通过DNA甲基化.接种方式接种方式在收获后的收获.它们是sRNARNA.β-氨基黄油酸是什么?

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