Fiche publication
Date publication
juin 2026
Journal
Nature communications
Auteurs
Membres identifiés du Cancéropôle Est :
Dr MENARD-MOYON Cécilia
,
Dr BIANCO Alberto
Tous les auteurs :
Xiang S, Chen M, Tian S, Peng H, Sun H, Cao M, Ménard-Moyon C, Sun X, Bianco A
Lien Pubmed
Résumé
Ralstonia solanacearum is a major plant pathogen causing bacterial wilt, whose unpredictable onset hinders timely detection and effective control. Here, we report the design, preparation and field use of a dual pH-responsive multifunctional double network (DN) hydrogel for the efficient and sustainable control of bacterial wilt. The primary network of carboxylated agarose chelates Zn and loosens under acidic conditions (pH ≤ 5) to release a pesticide (zhongshengmycin) and Zn, while the secondary L-phenylalanine (Phe)/ Zn network disassembles to provide additional bioactive components (Phe and Zn). This dual-triggered release achieves a combined antibacterial effect, enhances plant growth, and activates plant disease resistance pathways. A simple root application protects plants for up to 14 days, and field experiments demonstrate disease control for up to 30 days, significantly preserving tomato yield. Here, we present a sustainable, effective system for managing bacterial wilt and highlight the potential of smart hydrogels in crop protection.
Mots clés
Solanum lycopersicum, microbiology, Ralstonia solanacearum, drug effects, Plant Diseases, microbiology, Hydrogen-Ion Concentration, Hydrogels, chemistry, Anti-Bacterial Agents, pharmacology, Zinc, chemistry, Plant Roots, microbiology, Phenylalanine, chemistry, Disease Resistance, drug effects
Référence
Nat Commun. 2026 06 12;17(1):
