Complex multitrophic species interactions and fitness costs: Intricate consequences of jasmonate and salicylate induced plant defences.

ABSTRACT: Induced plant defences regulated by jasmonic acid (JA) and salicylic acid (SA) initiate a cascade of effects, from defence expression to changes in arthropod community structure and species interactions that can ultimately influence plant fitness. Yet the long-term consequences of these processes remain poorly understood, particularly in perennial tropical systems. We investigated how activation of JA and SA signalling pathways shapes arthropod community composition and plant reproductive success in Trichogoniopsis adenantha (Asteraceae), a glandular trichome-bearing shrub native to the Brazilian Atlantic rainforest. Using chemical elicitors, we induced JA and SA defences for up to 16 months and monitored herbivore and predator assemblages, herbivory patterns, trichome expression, pyrroliz

SUBMITTER: Kersch-Becker MF 

PROVIDER: S-EPMC13643180 | biostudies-literature | 2026 Oct

REPOSITORIES: biostudies-literature