Caracterización de la necrosis sistemática inducida por la interacción sinérgica entre el virus X de la patata y potyvirus en nicotiana benthamiana

Abstract

Plant viruses cause severe diseases that lead to serious economic losses worldwide. Moreover, simultaneous infections with several viruses are common in nature leading to exacerbation of the disease symptoms. This phenomenon is known as viral synergysm. Systemic necrosis (SN) is one of the most severe symtoms caused by plant viruses in susceptible plants, even leading to death of the host. This phenotype has been compared with the hypersensitive response (HR) displayed by resistant plants, and some parallelism have been found betwen both responses, which suggest that SN induced by compatible interactions could be the result of a systemic hypersensitive response (SHR).