Differential formononetin content in cultivars and experimental lines of red clover (Trifolium pratense L.) plants affect the feeding behaviour of Hylastinus obscurus (Coleoptera: Curculionidae)

Quiroz, A.; Bardehle, L.; Hormazabal, E.; Ortega, F.; Medina, C.; Mutis A.

Keywords: isoflavonoids, hylastinus obscurus, Formononetin, Trifolium pretense, Antifeedant effec

Abstract

Red clover (Trifolium pratenseL.) is a perennial plant widely used as a forage resource for several animals. This plant is the exclusive host of Hylastinus obscurus(Marsham) which causes irreparable damages to the root system affecting their persistence. It has been reported that the presence of the isoflavonoid formononetin in roots of red clover could act as an antifeedant on H. obscurus. There are not studies related to the formononetin content in red clover roots to the antifeedant effect elicited by experimental lines and cultivar of red clover. Six red clover genotypes were investigated in both formononetin content and their respective antifeedant action. The results showed to Sabtoron High and Superqueli-INIA with both the highest formononetin content in red clover roots and antifeedant effect, allowing to suggest that this secondary metabolites could be used as a chemical factor for red clover plants. Moreover, a rapid methodology for searching red clover genotypes with high formononetin content is reported

Más información

Título de la Revista: Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas
Volumen: 17
Editorial: Universidad de Santiago de Chile
Fecha de publicación: 2018
Página de inicio: 372
Página final: 380
Idioma: Ingles