Gao Bin, Li Bin, Yuan Jinxi, Shi Zhan, Zheng Xialin, Wang Guirong
Guangxi Key Laboratory of Agri-Environmental and Agri-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China.
Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China.
Insects. 2024 Jul 8;15(7):511. doi: 10.3390/insects15070511.
The intricate relationships between plants and insects are essential for understanding ecological dynamics. Among these interactions, HIPVs serve as a pivotal defense mechanism. Our findings reveal the highly conserved nature of the gene within the Lepidoptera order, highly expressed in the salivary glands of , and its role in mediating maize's defense responses. Notably, salivary GOX activity expression significantly decreases subsequent gene knockout. The presence of GOX in the saliva of significantly modulates the emission of HIPVs during maize consumption. This research delineates that GOX selectively inhibits the emission of certain green leaf volatiles (GLVs) while concurrently enhancing the release of terpene volatiles. This study unveils a novel mechanism whereby utilizes GOX proteins in OS to modulate volatile emissions from maize, offering fresh perspectives on the adaptive evolution of phytophagous insects and their interactions with their preferred host plants.
植物与昆虫之间错综复杂的关系对于理解生态动态至关重要。在这些相互作用中，植物挥发物诱导的植物挥发性次生物质（HIPVs）作为一种关键的防御机制。我们的研究结果揭示了该基因在鳞翅目昆虫中高度保守的特性，在[昆虫名称]的唾液腺中高度表达，以及它在介导玉米防御反应中的作用。值得注意的是，唾液中葡萄糖氧化酶（GOX）活性表达在基因敲除后显著降低。[昆虫名称]唾液中GOX的存在显著调节了玉米被食用期间HIPVs的释放。这项研究表明，GOX选择性地抑制某些绿叶挥发物（GLVs）的释放，同时增强萜类挥发物的释放。本研究揭示了一种新机制，即[昆虫名称]利用口腔分泌物（OS）中的GOX蛋白来调节玉米的挥发性物质排放，为植食性昆虫的适应性进化及其与偏好寄主植物的相互作用提供了新的视角。
