RT journal article
T1 Identification of Allelochemicals with Differential Modes of Phytotoxicity against Cuscuta campestris
A1 Moreno-Robles, Antonio
A1 Cala Peralta, Antonio
A1 Soriano, Gabriele
A1 García Zorrilla, Jesús
A1 Masi, Marco
A1 Vilariño-Rodríguez, Susana
A1 Cimmino, Alessio
A1 Fernández-Aparicio, Mónica
A2 Química Orgánica
K1 field dodder
K1 parasitic weeds
K1 bioherbicides
K1 sustainable crop protection
K1 2-benzoxazolinone
K1 hydrocinnamic acid
K1 pisatin
AB Cuscuta campestris is a parasitic weed species with noxious effects in broadleaf crops worldwide. The control of Cuscuta in the majority of crops affected is limited or non-existing. We tested, for the first time, the effect of eighteen metabolites in in vitro-grown Cuscuta seedlings. We found that 2-benzoxazolinone, hydrocinnamic acid and pisatin caused the strongest inhibition of seedling growth. In addition to seedling growth, pisatin caused necrosis of the Cuscuta seedling, occurring mostly at the seedling shoot. Scopoletin and sesamol treatments caused toxicity, observed as a black staining, only at the Cuscuta root apices, while caffeic acid, ferulic acid and vanillic acid caused toxicity, observed as brown staining, in the root apices. The structure-activity relationships in four structural derivatives of 2-benzoxazolinone, and five structural derivatives of hydrocinnamic acid, were also studied. The identification of new herbicidal modes of action against Cuscuta is the first step in creating new alternatives to sustainable chemical control of parasitic weeds.
PB MDPI
SN 2077-0472
YR 2022
FD 2022-10
LK http://hdl.handle.net/10498/28834
UL http://hdl.handle.net/10498/28834
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026