State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China.
Bull Entomol Res. 2024 Oct;114(5):652-662. doi: 10.1017/S0007485324000439. Epub 2024 Oct 18.
The diversity and health of insects that feed on plants are closely related to their mutualistic symbionts and host plants. These symbiotic partners significantly influence various metabolic activities in these insects. However, the symbiotic bacterial community of toxic plant feeders still needs further characterisation. This study aims to unravel bacterial communities associated with the different species of insect representing three insect orders: Thysanoptera, Hemiptera, and Lepidoptera, along with their predicted functional role, which exclusively feeds on latex-rich plant species . By using 16S rRNA gene high-throughput sequencing, the analysis was able to define the major alignment of the bacterial population, primarily comprising , , , , and . Significant differences in symbiotic organisms between three insect groups were discovered by the study: hemipterans had and , and lepidopterans had . At the same time, was detected in high abundance in both lepidopteran and thysanopteran insects. Furthermore, these symbionts exhibit consistent core functions, potentially explaining how different insects can consume the same host plant. The identified core functions of symbionts open avenues for innovative approaches in utilising these relationships to develop environment-friendly solutions for pest control, with broader implications for agriculture and environmental conservation.
昆虫以植物为食，其多样性和健康状况与其互惠共生的共生体和宿主植物密切相关。这些共生伙伴对这些昆虫的各种代谢活动有很大的影响。然而，有毒植物食者的共生细菌群落仍需要进一步的特征描述。本研究旨在揭示与三种昆虫目（缨翅目、半翅目和鳞翅目）的不同昆虫物种相关的细菌群落，这些昆虫专门以富含乳胶的植物物种为食。通过使用 16S rRNA 基因高通量测序，该分析能够定义细菌种群的主要排列，主要包括、、、和。研究发现，三种昆虫群体之间的共生生物存在显著差异：半翅目昆虫具有和，而鳞翅目昆虫具有。同时，在鳞翅目和缨翅目昆虫中均检测到大量的。此外，这些共生体具有一致的核心功能，这可能解释了不同的昆虫如何能够食用同一宿主植物。共生体的这些核心功能为利用这些关系开发环保型害虫防治解决方案提供了新途径，这对农业和环境保护具有更广泛的意义。
