相关实验视频

Updated: Jun 20, 2026

Bioassays for Monitoring Insecticide Resistance

Bioassays for Monitoring Insecticide Resistance

Published on: December 30, 2010

通用臭剂结合蛋白GOBP2的结合性质,用于Spodoptera litura中的除草剂和杀虫剂

Xiaodan Huang¹, Tianxiang Xiao¹, Mengqing Deng¹

¹Key Laboratory of Agri-products Quality and Biosafety (Ministry of Education), Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.

Journal of agricultural and food chemistry

|February 6, 2025

概括

一般的气味结合蛋白GOBP2直接与农药结合,增强了Spodoptera litura的耐受性. 击败GOBP2增加了对除草剂和杀虫剂的敏感性,揭示了害虫管理的关键机制.

科学领域:

* 分子昆虫学分子昆虫学
* 生物化学 * 生物化学
* 虫害管理虫害管理

背景情况:

* 之前已经证明,GOBP2一般的气味结合蛋白可以增强Spodoptera litura*中的pyrifos耐受性.
*GOBP2与农药之间的直接相互作用,特别是关于除草剂诱导的杀虫剂耐受性,仍然没有表征.

研究的目的:

* 为了研究GOBP2与农药的直接结合.
* 确定这种结合对S. litura*中除草剂诱导的杀虫剂耐受性的影响.
* 为了确定GOBP2上农药的关键结合点.

主要方法:

*光竞争性结合试验,以评估GOBP2-农药相互作用.
* 分子对接和位点定向突变发生,以确定GOBP2.2上的农药结合位点.
*对GOBP2*进行基因淘汰,以评估其在农药耐受性方面的作用.

主要成果:

*GOBP2与三拉林,因多克萨卡卜,pyrifos和fipronil (K_i值:1.9513.01μM) 具有很高的结合亲和力.
* Ala136和Thr30被确定为GOBP2.2上农药的关键结合点.
* Knockdown of *GOBP2*显著增加了幼虫对trifluralin和测试的杀虫剂的敏感性.

结论:

*GOBP2与杀虫剂的直接结合是S. litura*中除草剂诱导的杀虫剂耐受性的关键因素.
* 了解这些分子相互作用为开发新型害虫管理策略提供了基础.
*GOBP2在S. litura对一系列农药的耐受性方面发挥着重要作用.

关键词:

嗅觉蛋白质是一种嗅觉蛋白质.光竞争性结合试验.除草剂是一种除草剂.昆虫杀虫剂耐受性昆虫杀虫剂耐受性分子对接的分子对接.

更多相关视频

Characterizing Herbivore Resistance Mechanisms: Spittlebugs on Brachiaria spp. as an Example

Characterizing Herbivore Resistance Mechanisms: Spittlebugs on Brachiaria spp. as an Example

Published on: June 19, 2011

Quantification of the Potential Impact of Glyphosate-Based Products on Microbiomes

Quantification of the Potential Impact of Glyphosate-Based Products on Microbiomes

Published on: January 10, 2022

相关概念视频

Production of Biopesticides

Production of Biopesticides

Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...