Beitrag
Host-induced salivary protein plasticity mediated by different maize varieties revealed potential proteins involved in plant defense regulation in Spodoptera frugiperda
Lin, Huan-tai; Cai, Ju-yuan; Zhou, Jiang-Xiong; Yang, Zhi-han; Li, Wu-yue; Gao, San-ji; Wang, Jin-da
Entomologia Generalis Volume 45 Number 6 (2025), p. 1679 - 1688
veröffentlicht: Dec 4, 2025
Online veröffentlicht: Dec 4, 2025
Manuskript akzeptiert: Oct 6, 2025
Manuskript-Revision erhalten: Sep 23, 2025
Manuskript-Revision angefordert: Sep 8, 2025
Manuskript erhalten: Jul 21, 2025
ArtNo. ESP146004506014, Preis: 29.00 €
Abstract
The invasion of the fall armyworm (Spodoptera frugiperda) poses a significant threat to crop productivity worldwide. Understanding plant-insect interaction mechanisms is crucial for developing resistant cultivars and sustainable pest management strategies. This study investigated the feeding preferences and developmental performance of S. frugiperda larvae on two maize cultivars: feed corn (ZD958) and sweet corn (ZNT488). Larvae exhibited a strong preference and higher fitness on ZNT488. Comparative salivary proteomics revealed host-specific differentially expressed proteins, with the majority categorized as digestive enzymes. Furthermore, we identified two salivary proteins with potential roles in modulating plant defenses: a trypsin alkaline B-like protein stimulating plant defense responses, and antichymotrypsin-1 isoform X1, implicated in suppressing them. Our results demonstrated that host plant-induced plasticity in S. frugiperda salivary protein expression mediates insect-maize interactions, and provided fundamental insights into herbivore adaptation mechanisms as well as identify molecular targets for development of new pest management strategy.
Schlagworte
fall armyworm • life table • resistance mechanisms • phytohormones • RNA interference (RNAi) • host specificity • effectors • proteomics