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酸:一种潜在的分泌效应剂,由食植物昆虫合成,用于宿主植物操纵

Stephannie Seng¹, Gabriela E Ponce², Peter Andreas³

¹Department of Biology, San Francisco State University, San Francisco, CA 94132, USA.

|June 27, 2023

概括

昆虫在高度下合成和分泌植物激素酸 (ABA),可能会操纵宿主植物以造福它们. 这一发现揭示了一种新的昆虫植物相互作用机制.

科学领域:

植物生物学植物生物学
昆虫生物学昆虫生物学
生物化学生化学

背景情况:

酸 (ABA) 是一种关键的植物信号分子,调节生长,发育和应激反应.
在各种动物中检测到ABA,包括昆虫和人类.
已知食植物昆虫与宿主植物相互作用,有时会诱导胆汁.

研究的目的:

为了研究植物食虫中的ABA的存在和度.
为了确定ABA水平是否在诱导胆汁和非诱导胆汁的昆虫之间有所不同.
探索昆虫衍生的ABA在植物操纵中的潜在作用.

主要方法:

高性能液体染色学-电子喷射离子双重质谱法 (HPLC-ESI-MS/MS) 用于量化17种昆虫物种的ABA.
免疫组织化学被用来在昆虫组织中定位ABA,特别是*Eurosta solidaginis*幼虫的唾液腺体中.

主要成果:

在所有六个检查的昆虫种群中都检测到ABA,包括引起胆汁的和非引起胆汁的物种.
昆虫的ABA度经常超过植物中的ABA度,这表明内源合成.
ABA局部存在于诱导胆汁的*Eurosta solidaginis*幼虫的唾液腺体中.

结论:

昆虫可能会合成和分泌ABA,其高度和在唾液腺中的局部化证明了这一点.
来自昆虫的ABA可以用来操纵宿主植物的营养分配和防御机制.
除了细胞因子 (CKs) 和英多尔-3-酸 (IAA),ABA代表了一类从腺体器官分泌的操纵昆虫的植物激素.

关键词:

酸 (ABA) 是一种引起胆汁诱导的胆汁诱导对宿主植物进行操纵.调动水槽的动员方式没有诱导的非诱导性.他们是植物食者.抑制宿主防御的作用.

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