Li Xian, Jia Jing-Jing, An Jun-Long, Meng Fan-Xin, Liu Tong-Xian, Zhang Shi-Ze
State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling 712100, China.
Institute of Plant Protection, Hainan Academy of Agricultural Sciences, Research Center of Quality Safety and Standards for Agro-Products, Hainan Academy of Agricultural Sciences, Haikou 571100, China.
Insects. 2024 Jul 27;15(8):570. doi: 10.3390/insects15080570.
Parasitoids have the potential to alter the gut microbiota of their host insects post-parasitization, thereby influencing the host's physiological functions and creating a more favorable environment for the survival of the parasitoid's progeny. is a native enemy of the important invasive fall armyworm (FAW) pest, , in China, exhibiting significant pest control capabilities. To investigate the impact of on the gut bacteria of FAW caterpillars following parasitism, we used 16S rRNA sequencing technology to analyze the diversity and richness of gut bacteria in both long-term laboratory and short-term laboratory FAW caterpillars. The results revealed as the predominant bacteria across all treatments, while no significant differences were observed in the diversity and richness of gut bacteria between non-parasitized and parasitized long-term laboratory FAW caterpillars. Similarly, while the diversity of gut bacteria in non-parasitized and parasitized short-term laboratory FAWs showed no significant variance, a marked discrepancy in richness was noted. Moreover, the richness of gut bacteria in short-term laboratory FAW caterpillars surpassed that of their long-term laboratory counterparts. In addition, it was found that existed only in the intestinal tract of FAW caterpillars that were parasitized by . These results substantiate that parasitization can alter the gut microbiota of FAW caterpillars, providing valuable insights into the interplay between gut microbiota and the dynamics of parasitoid-host interactions.
寄生蜂在寄生后有可能改变其寄主昆虫的肠道微生物群，从而影响寄主的生理功能，并为寄生蜂后代的生存创造更有利的环境。在中国，[寄生蜂名称]是重要入侵害虫草地贪夜蛾的天敌，具有显著的害虫控制能力。为了研究[寄生蜂名称]寄生后对草地贪夜蛾幼虫肠道细菌的影响，我们使用16S rRNA测序技术分析了长期实验室饲养和短期实验室饲养的草地贪夜蛾幼虫肠道细菌的多样性和丰富度。结果显示，[细菌名称]在所有处理中都是优势细菌，而未寄生和寄生的长期实验室饲养的草地贪夜蛾幼虫肠道细菌的多样性和丰富度没有显著差异。同样，未寄生和寄生的短期实验室饲养的草地贪夜蛾肠道细菌多样性没有显著差异，但丰富度存在明显差异。此外，短期实验室饲养的草地贪夜蛾幼虫肠道细菌的丰富度超过了长期实验室饲养的幼虫。另外，发现[细菌名称]仅存在于被[寄生蜂名称]寄生的草地贪夜蛾幼虫的肠道中。这些结果证实，[寄生蜂名称]寄生可以改变草地贪夜蛾幼虫的肠道微生物群，为肠道微生物群与寄生蜂-寄主相互作用动态之间的相互关系提供了有价值的见解。
