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Fungal and plant metabolites with strigolactone-like activity

AutorCimmino, Alessio ; Fernández-Aparicio, Mónica ; Evidente, Marco; Masi, Marco; Rubiales, Diego ; Evidente, Antonio
Fecha de publicaciónmar-2015
CitaciónFirst International Congress on Strigolactones (2015)
ResumenOrobanche and Phelipanche species (the broomrapes) are root parasitic plants, some of which represent serious weed problems causing heavy yield losses on important crops. Current control relies on the use of certain agronomic practices, resistant crop varieties, and herbicides, albeit success has been marginal. Agronomic practices such as the use of allelopathic species in intercropping or cover crops, or the use of direct seedling over residues of allelopathic species incorporate the principle of allelopathy exerted by molecules exuded from roots or released by crop residues to control broomrapes. The isolation of natural substances from root exudates of plants with potential to stimulate or inhibit broomrape development opens the door to the design of new herbicides based on natural and benign sources. In addition, some fungal metabolites exhibited the ability to stimulate and/or inhibit the broomrape seed germination and promotes a rapid cessation of radicle growth with the promotion of a layer of papillae at the radicle tip hampering the contact of the parasite to the host. This communication will illustrates the results obtained in the isolation and chemical characterization of several plants, plant root exudates and fungal metabolites and the results of testing them on the seed germination of different Orobanche and Phelipanche species with the aim to develop alternative and eco friendly strategies to control these very dangerous parasitic plants.
DescripciónTrabajo presentado en el First International Congress on Strigolactones, celebrado en Wageningen (Holanda) del 1 al 6 de marzo de 2015.
URIhttp://hdl.handle.net/10261/160479
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