通过Streptomyces物种的挥发性有机化合物对Acanthoscelides obtectus进行生物控制
Gloria Castellanos-Pérez1, Daniel Alonso Pérez-Corral2,3, José de Jesús Ornelas-Paz1
1Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Subsede Cuauhtémoc, Cuauhtémoc, Chihuahua, Mexico.
Journal of economic entomology
|January 30, 2026
概括
来自Streptomyces物种的微生物挥发性有机化合物 (mVOC) 对常见豆具有强大的杀虫活性. 这些mVOC为昆虫害虫提供了一个有前途的生物控制策略.
科学领域:
- 微生物学 微生物学
- 昆虫学 昆虫学是一门学科.
- 生物控制生物控制
背景情况:
- 微生物挥发性有机化合物 (mVOCs) 越来越多地被认为具有害虫控制方面的潜力.
- 来自Streptomyces (actinobacteria) 的mVOCs的杀虫性能在很大程度上是未被探索的.
- 来自actinobacteria的mVOCs可能为控制诸如常见豆 (Acanthoscelides obtectus) 等昆虫害虫提供可持续的替代方案.
研究的目的:
- 研究五种Streptomyces物种产生的mVOCs对成年A. obtectus的杀虫活性.
- 评估从这些mVOC中识别出的纯挥发性有机化合物 (VOC) 的疗效.
- 评估mVOCs对A. obtectus生殖表现的影响.
主要方法:
- 五种Streptomyces物种在小麦谷物上进行了培养.
- 成年A. obtectus在体外暴露于mVOCs.
- 纯的VOCs (3-penten-2-one,eucalyptol,2-pentanone) 在不同度下进行了测试.
- 确定了死亡率,生殖参数 (排卵,卵子活力),LD50和LT50.
主要成果:
- 所有测试的Streptomyces物种都产生了杀虫剂mVOC,导致2496小时内死亡.
- 三种菌株 (CIAD-IA69,CIAD-CA07,CIAD-CA27) 在24小时内实现了100%的死亡率.
- mVOCs显著降低了A. obtectus的卵位和卵子活力.
- 纯挥发性有机物显示出快速的毒性;在特定度下,3-二,欧卡利普托尔和2-在4小时内导致100%的死亡率.
- 挥发性有机物毒性取决于时间,在更长的暴露时间和更高度下,LD50和LT50值较低.
结论:
- 来自Streptomyces的mVOCs对Acanthoscelides obtectus具有显著的杀虫性能.
- 特定的VOC如3-penten-2-one,eucalyptol和2-pentanone是强大的杀虫剂.
- 这些发现支持Streptomyces mVOCs作为农业害虫可持续生物控制战略的潜力.
关键词:
科莱奥普特拉 (科莱奥普特拉) 是一种小鸟类.这里是斯特雷普托米塞托斯.链杆菌菌种 链杆菌菌种生物杀虫剂生物杀虫剂生物杀虫剂生物杀虫剂它们是 coleópterosteros.有机化合物 挥发性 有机化合物格拉诺斯的海 存储 存储储存的粮食害虫害虫害害虫害害虫害害虫害害虫害害虫害害虫害害虫害害虫害虫害害虫害害虫害虫害害虫害虫害虫害虫害虫害虫害虫害虫害虫害虫害虫害挥发性有机化合物 挥发性有机化合物更多相关视频
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