斑马虫害对Bt Cry毒素的现场进化耐药性:对多层监管机制和下一代管理策略的洞察
Junfei Xie1, Wenfeng He1,2, Min Qiu1,2
1Center of Applied Biotechnology, School of Life Sciences and Technology, Wuhan University of Bioengineering, Wuhan 430415, China.
Toxins
|February 26, 2026
概括
细菌 thuringiensis (Bt) 哭泣毒素保护作物,但像Spodoptera frugiperda这样的害虫发展了耐药性. 本综述详细介绍了耐药性机制和可持续Bt生物技术的新策略.
科学领域:
- 农业昆虫学 农业昆虫学
- 分子生物学分子生物学
- 生物技术是生物技术.
背景情况:
- 在转基因作物中,Bt Cry毒素对控制虫害至关重要.
- 像Spodoptera frugiperda和Helicoverpa armigera这样的关键害虫在现场进化的耐药性威胁到Bt的有效性.
研究的目的:
- 呈现Bt Cry毒素作用和耐药性的统一机制框架.
- 综合当前关于多层电阻机制的知识.
- 探索新的对策和可持续使用Bt的未来战略.
主要方法:
- 关于Bt Cry毒素作用模式的现有文献的审查和综合.
- 对基底的分子和生理机制的分析. 现场演变的抵抗.
- 检查克服抵抗的新兴和先进策略.
主要成果:
- 抵抗包括目标部位的改变,改变的中肠蛋白酶,免疫逃避和微生物群的相互作用.
- 涉及转录因子和MAPK通路的调节网络协调了抵抗.
- 新的对策包括毒素金字塔化,受体淘汰和合理的蛋白质重新设计.
结论:
- 了解复杂的抵抗机制是维持Bt疗效的关键.
- 整合系统生物学方法和人工智能驱动的设计对于未来的Bt生物技术至关重要.
- 可持续使用Bt需要主动的抗药性管理策略.
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