Unraveling the mechanisms of multifaceted defense induction in sweet peppers by (Z)-3-hexenyl propanoate
Riahi, Chaymaa; Gallego-Giraldo, Carolina; Calatayud, Ángeles; Urbaneja, Alberto; Pérez-Hedo, Meritxell
Entomologia Generalis Volume 45 Number 4 (2025), p. 1101 - 1111
publié: Oct 20, 2025
publication en ligne: Aug 20, 2025
manuscrit accepté: Jun 12, 2025
révision final du manuscrit reçu: May 22, 2025
révision du manuscrit demandée: Apr 27, 2025
manuscrit reçu: Jan 8, 2025
Open Access (article peut être télechargé gratuitement)
Abstract
The agricultural sector confronts unprecedented challenges due to global climate change. Volatile organic compounds (VOCs) offer an innovative solution to enhance crop resilience against biotic and abiotic stresses. In this study, we evaluated the effects of continuous exposure to (Z)-3-hexenyl propanoate [(Z)-3-HP], a green leaf volatile, on the physiological, biochemical, molecular, and ecological responses of sweet pepper plants. Transcriptomic analyses revealed the upregulation of genes associated with wounding, pathogenesis, hormonal signaling, and redox regulation. Biochemical assays indicated improved oxidative stress management, while gas exchange measurements showed enhanced water use efficiency and regulated stomatal closure without compromising photosynthesis and productivity, suggesting adaptability to water deficit. Pest performance trials demonstrated reduced infestation and improved plant resistance against Frankliniella occidentalis, Trialeurodes vaporariorum, and Spodoptera exigua. These findings support the use of (Z)-3-HP as a sustainable elicitor in integrated pest and stress management strategies, contributing to climate-resilient agriculture and reduced chemical input.
Mots-clefs
Agricultural sustainability • HIPVs • elicitors • polymeric dispenser • pest resistance • phytochemical response • transcriptomic analysis • trade-offs