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远红灯增加了玉米的挥发性排放,以响应邻近植物的挥发性线索

Rocío Escobar-Bravo¹, Bernardus C J Schimmel¹, Yaqin Zhang¹

¹Institute of Plant Sciences, University of Bern, Bern, Switzerland.

Plant, cell & environment

|June 14, 2024

概括

植物在低红至远红光 (R:FR) 条件下更强烈地响应邻居的化学信号. 这种由植物染色体B信号和光合作用介导的相互作用会影响植物的相互作用.

科学领域:

工厂的信号和通信系统.
植物 - 草食动物相互作用
植物生理学植物生理学

背景情况:

植物使用光线和挥发性线索来感知邻居.
光和挥发性信号的整合尚未得到充分理解.
低红到远红光 (R:FR) 的比率表示遮阳或遮阳盖封闭.

研究的目的:

调查低R:FR光线如何影响玉米对草食诱导植物挥发性物质 (HIPV) 的反应.
确定玉米中光和挥发信号集成的机制基础.

主要方法:

使用远红 (FR) 补充和植物色B突变物 (phyB1phyB2) 调制光信号.
测量了挥发性物质的释放,基因表达,激素积累和光合作用.
在不同的光照条件下暴露于HIPV和 (Z) -3-hexenyl酸盐的玉米.

主要成果:

HIPVs和 (Z) -3-hexenyl乙诱导的玉米挥发性释放.
短期FR补充剂增强了对HIPVs的反应.
长时间的FR或植物染色体B无活化减少了反应.
短期FR改善了光合作用,口腔导电性和JA-Ile水平.

结论:

一个富含FR的光环境增强了玉米对HIPV的敏感性.
植物染色体B信号传递和光合作用变化可能会调解这种相互作用.
研究结果揭示了具有生态影响的互动光和挥发性暗示反应.

关键词:

草食动物草食动物绿叶中的挥发性物质植物染色体B 植物染色体B 工厂防御系统的工厂防御系统信号整合信号整合信号整合它们是烯 (terpenes).

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