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叶子的发育阶段在响应模拟的昆虫草本牙的过程中强烈调节带排放

Marie Engelberth¹, Jurgen Engelberth¹

¹Department of Biology, Health, and the Environment, The University of Texas at San Antonio, San Antonio, TX 78249, USA.

Plants (Basel, Switzerland)

|December 31, 2025

概括

玉米植物从受损的老叶子中排放出更多的内醇,一种防御性挥发性物质,比年轻的叶子更多. 这表明植物防御挥发性排放因叶子年龄和发育阶段而异.

科学领域:

植物科学植物科学
化学生态化学生态学
分子生物学分子生物学

背景情况:

玉米植物利用多种防御机制对抗昆虫食草动物,包括蛋白酶抑制剂,佐胺,和食草动物诱导的植物挥发物 (HIPVs).
诸如类,绿叶挥发物 (GLV) 和类等HIPV可以调解植物间的沟通,并吸引食草动物的天然敌人.
印是一种关键的代谢中间体,在奥克辛,氧化和托生物合成中发挥作用,使其排放模式对了解植物防御具有重要意义.

研究的目的:

调查玉米叶的发育阶段如何影响因应模拟昆虫草食而产生的印排放.
根据叶子的年龄来确定道的排放模式是否与其他高高压杆菌不同.

主要方法:

在玉米植物上使用昆虫诱导剂 (N-linolenoyl glutamine) 诱导模拟的昆虫草食.
从不同发育阶段的叶子 (生长与超长) 中量化了印排放量.
基于叶子年龄的印排放水平与其他HIPV的比较.

主要成果:

在模拟草食之后,玉米叶表现出明显更高的长出 (老) 叶子的内醇排放量,而不是仍在生长的 (年轻) 叶子.
这与其他HIPV形成鲜明对比,这些HIPV通常在较年轻的叶子中以更高的水平发射.
印排放似乎是动态调节的,根据叶子发育阶段平衡生长和防御.

结论:

玉米中的英多尔排放强烈依赖于叶子的发育状态,较老的叶子在损坏时会释放更多的英多尔.
这种发展规则强调了植物在生长和防御之间动态分配的资源.
了解这些年龄相关的挥发性排放对于理解植物-昆虫相互作用和植物通信网络至关重要.

关键词:

齐亚梅斯 (Zea mays) 是一种植物.基因表达的基因表达方式草动物诱导的植物挥发物草食动物草食动物印度尔 (Indole) 是一种制剂.昆虫诱导者昆虫诱导者叶子的发育情况工厂防御系统的工厂防御系统

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