本地中肠细菌社区增加了棉花叶虫对核聚合体病毒的抵抗力
Tong Li1, Yueli Jiang1, Yunhui Zhang2
1Institute of Plant Protection/Henan Key Laboratory of Agricultural Pest Monitoring and Control/Key Laboratory of Integrated Crop Pests Management on Crops in Southern Region of North China，Ministry of Agriculture and Rural Affairs, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China.
Pesticide biochemistry and physiology
|June 11, 2025
概括
用抗生素破坏Spodoptera littoralis幼虫的肠道细菌会增加它们对核多重体病毒 (NPV) 的易感性. 这表明,准昆虫肠道微生物群可以增强生物害虫控制策略.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 微生物学 微生物学
- 虫害管理 虫害管理 虫害管理
背景情况:
- 核多重体病毒 (NPV) 对于对虫虫害进行生物控制至关重要.
- 昆虫肠道细菌在NPV相互作用中的作用还没有得到充分研究.
- 极地虫 (Spodoptera littoralis) 是一个重要的农业害虫.
研究的目的:
- 为了研究改变肠道细菌组成对Spodoptera littoralis的NPV疗效的影响.
- 探索操纵肠道微生物群以改善害虫控制的潜力.
主要方法:
- 在Spodoptera littoralis幼虫的食中,食了一种含有链杆菌素的饮食,以改变肠道细菌.
- 使用分类学和生物标志物分析分析了中肠细菌的多样性和组成.
- 幼虫在不同的度下用NPV进行了生物测试.
- 量化了幼虫存活率和NPV易感性.
主要成果:
- 链胺显著改变了S. littoralis中肠细菌的多样性和组成.
- 主导的本地细菌种群减少了,而细菌群和细菌群在杆菌素治疗下得到了丰富.
- 食斯特雷普托米辛的幼虫表现出更高的NPV易感性和NPV感染后更短的寿命.
- 在食菌素的幼虫中,NPV相对剂量显著更高.
结论:
- 本地肠道细菌社区S. littoralis影响了对NPV的耐药性.
- 改变肠道微生物群的组成可以提高NPV的传播和易感性.
- 破坏本地肠道细菌为S. littoralis控制提供了一个新的策略,使用NPVs.
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