鳞翅目昆虫口腔分泌物对植物防御的双重调控OA

Lepidopteran insects,as major agricultural pests,engage in a complex molecular dialogue with their host plants.Their o-ral secretions(OS),a mixture of saliva from salivary glands and digestive fluids from the gut,are introduced into plant tissue during larval feeding,thereby influencing plant defense responses.Through long-term co-evolution with host plants,lepidopteran insects have been able to produce OS containing a sophisticated array of components,including both elicitors that activate plant defenses and effectors that suppress them.This review systematically summarizes recent research advances in the interaction systems between lepi-dopteran insects and plants,with a focus on the composition,functions,and mechanisms of action of salivary proteins.Additionally,it highlights current limitations in research methodologies,such as techniques for identifying salivary proteins,understanding trans-membrane transport mechanisms,and assessing functional conservation.Future studies should integrate multi-omics technologies,cross-species comparisons,and multi-host plant systems to further elucidate the evolutionary and functional diversity of lepidopteran salivary proteins,providing a theoretical foundation for developing novel pest control strategies.