布鲁西因D通过对抗20E-EcR/USP信号转导来作为一种潜在的杀虫剂
Dongping Chen1, Kang Li2, Bingfeng Wang1
1National Key Laboratory of Green Pesticide and the State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China.
Journal of agricultural and food chemistry
|July 21, 2023
概括
布鲁塞因D向了ecdysone受体 (EcR),抑制了昆虫的生长和变形. 这一发现有助于开发用于害虫控制的新型环保农药.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 来自 *Brucea javanica* 的 Bruceine D (BD) 显示出杀虫性能.
- 针对昆虫的BD作用的确切目标和机制尚未完全理解.
研究的目的:
- 为了识别Bruceine D.的分子目标.
- 阐明BD杀虫活性背后的机制.
主要方法:
- 表面等离子体共振 (SPR) 和LC-MS/MS用于目标识别.
- 昆虫生长和变形的实体研究.
- *在体外*双化酶和EGFP测定.
- 分子对接模拟. 分子对接模拟.
主要成果:
- 埃克迪松受体 (EcR) 被确定为BD的主要点.
- BD抑制了20-hydroxyecdysone (20E) 反应基因的表达.
- 通过干扰ecdysone响应元素 (EcRE) 复合体形成,BD抑制了EcR转录活性.
- 分子对接证实了BD与EcR.的结合亲和力.
结论:
- 布鲁赛因D通过抑制ecdysone受体而起作用,扰乱昆虫的生长和变形.
- 了解这种机制为开发新的绿色农药提供了基础.
相关概念视频
01:18Production 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...
01:15Anthelminthic Agents
Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...