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生态进化因素有助于地表和地下虫草食者诱导的植物挥发物中的化学多样性

M N Thompson¹, Z P Cohen², D Merrell^1,3

¹Department of Entomology, Texas A&M University, College Station, TX, USA.

Plant biology (Stuttgart, Germany)

|August 20, 2024

概括

当被昆虫攻击时,植物从叶子和根部发出不同的化学信号 (草食动物诱导的植物挥发物). 化令人惊地增加了叶子的挥发性多样性,而食草动物暴露在两种组织中减少了它.

科学领域:

植物生物学植物生物学
化学生态化学生态学
进化生物学进化生物学

背景情况:

当被昆虫攻击时,植物会释放由草食动物诱导的植物挥发物 (HIPV).
HIPV从地面 (叶子) 和地下 (根) 组织中发射.
了解组织特异性HIPV变异以及塑造这些排放的力量至关重要.

研究的目的:

为了比较植物物种内部和植物物种之间的叶子和根 HIPV.
调查影响HIPV混合物的生态进化力量 (化,食草动物共存,原生).
解决HIPV排放模式在植物组织和物种之间如何变化.

主要方法:

对比了六种密切相关的Cucurbitaceae物种的叶子和根的挥发性概况.
评估的物种具有不同的养状态和草食者共存历史.
分析了草食后挥发性排放的定量和质量变化.

主要成果:

草食诱导了挥发性排放的大量和质量的显著变化,在树叶中表现得更明显,而不是根.
每种物种都表现出组织特异性HIPV,在物种之间具有明显的叶子和根形状.
与预测相反,化增加了叶子的挥发性多样性,而草食动物的共存减少了这两种组织的多样性.
遗传学相关性与挥发性概况没有显著的相关性.

结论:

植物养和食草动物的相互作用以组织特定的方式显著影响HIPV排放.
生态进化因素对植物挥发性化学多样性有复杂的影响.
这项研究强调了HIPV排放及其驱动因素在工厂内部以前未被描述的变化.

关键词:

化学多样性的演变.黄瓜科 (Cucurbitaceae) 是一个植物.叶子中的挥发性物质草食动物诱导的植物挥发物.昆虫是一种草食动物.植物防护产品的使用.根的挥发性物质是根的挥发性物质.

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