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盐度压力改变了地面和地下草食动物之间的植物介导相互作用

Qian Zhang¹, Qiongqiong Wang², Kris A G Wyckhuys³

¹State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China.

The Science of the total environment

|June 3, 2024

概括

盐度压力改变了植物的防御,当根被害虫破坏时,虫受益. 这种相互作用是由叶子氨基酸增加引起的,如氨酸,影响害虫管理策略.

科学领域:

植物与昆虫的相互作用
无生物应激生理学的生理学
化学生态化学生态学

背景情况:

地下草食动物可以触发影响地面草食动物的系统植物反应.
根损伤可能会增加植物对非生物应激的敏感性,例如盐度.
生物和非生物压力因子对植物防御的相互作用尚未得到充分研究.

研究的目的:

研究Agrotis segetum根草食如何影响Aphis gossypii在棉花上的表现.
为了确定盐度压力是否调节这些植物-食草动物相互作用.
阐明这些相互作用背后的生化机制.

主要方法:

对棉花植物进行了受控实验,这些植物接受了根草食和不同盐度的试验.
虫发育时间和生育能力的评估.
转录组和代谢组分析以确定分子和代谢变化.
生物测试以确认特定代谢产品的作用.

主要成果:

单独的Agrotis segetum根草食并没有影响Aphis gossypii的表现.
在高盐度 (600mM NaCl) 下,根草食会使虫的发育时间减少16.1%,生育能力增加72.0%.
根草食和度共同诱导了棉花叶中的氨基酸生物合成,增加的氨酸水平与增强的虫表现相关.

结论:

盐度压力显著改变了棉花中地下和地面草食动物之间的相互作用.
植物防御的调节由同时存在的非生物和生物压力因子调节,由叶子氨基酸概况的变化介导.
研究结果提供了关于植物对多种压力因素的反应的见解,并为综合性害虫防治策略提供了信息.

关键词:

无生物应激应激是一种非生物应激.生物压力是生物压力.昆虫的健身昆虫的健身植物代谢物中的植物代谢物.系统性获得的电阻

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