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在类植物中,植物挥发性触发的防御系统对抗生物压力因素

Meritxell Pérez-Hedo¹, Carolina Gallego-Giraldo¹, María Ángeles Forner-Giner²

¹Instituto Valenciano de Investigaciones Agrarias (IVIA), Centro de Protección Vegetal y Biotecnología, Moncada, Valencia, Spain.

Frontiers in plant science

|July 25, 2024

概括

植物挥发性化合物激活的防御基因,Poncirus trifoliata母体对这种反应做出了重大贡献. 这一发现为果园的天然害虫防治策略提供了潜力.

科学领域:

植物科学植物科学
分子生物学分子生物学
昆虫学昆虫学是一门学科.

背景情况:

植物利用挥发性有机化合物 (VOC) 来防御环境压力.
挥发性有机化合物调解植物-昆虫相互作用和植物间的通信,以激活防御.
有限的研究存在于类植物中VOC诱导的防御机制.

研究的目的:

为了研究的根茎中防护激活的分子机制Citrange carrizo暴露于挥发性 (Z) -3-hexenyl propanoate [(Z) -3-HP].
通过使用其父种,Citrus sinensis和Poncirus trifoliata的基因组分析杂交根茎的转录组反应.
评估 (Z) -3-HP对果害虫行为和性能的影响.

主要方法:

对暴露于 (Z) -3-HP的Citrange carrizo根茎进行转录组分析.
使用亲属物种基因组 (C. sinensis × P. trifoliata) 的比较基因组分析.
生物测试用于评估害虫威,自然敌人的吸引力和害虫的性能.

主要成果:

观察到基因表达的显著变化,其中包括参与植物免疫力,抗氧化活性,草食动物防御和非生物应激耐受性的基因的显著上调.
庞西鲁斯三叶草基因组对混合体的基因表达特征作出了显著的贡献,以应对 (Z) -3-HP.
(Z) -3-HP暴露导致害虫排斥,吸引自然捕食者,并降低了主要类害虫的性能.

结论:

挥发性有机化合物触发类植物中复杂的分子防御途径.
杂交根茎的防御反应受其父母遗传贡献的影响,特别是来自P. trifoliata.
植物挥发性物质 (如 (Z) -3-HP) 作为果生产中综合性害虫控制策略的环保组件具有前景.

关键词:

(Z) -3-基烯酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基酸 (Z) -3-基)卡里佐花 (Carrizo citrange) 是一种花.无生物压力是无生物压力.抗氧化酶是一种抗氧化酶.氧化应激是一种氧化应激.转录组 (transcriptome) 是一个转录组.

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