Avaliação de fontes de resistência de plantas micropropagadas de Capsicum spp a um isolado viral obtido de pimenteira coletada no município de Sumé - PB.

Abstract

The peppers and chilis, pertaining to the Capsicum sort spp., widely are cultivated in all the world. One of the limitations for these cultures is the illnesses of viral origin. Diverse viruses infect the peppers, being distinguished potyvírus Pepper yellow mosaic virus (PepYMV). A tool that they happen of the biotechnology is the micropropagation, that is one technique of vegetal fabric culture that has for interest, the attainment of healthy and resistant plants. Of this form, the present work aimed at to carry through a survey the main viruses that cause economic damage in capsicum spp. in the City of Sumé, PB and to identify possible sources of resistance in plants of spread pe. Initially, collections of the samples of peppers in the city of Sumé for the identiication of Potyvirus had been carried through and through the serologic test (indirect ELISA) it was conirmed viral infection to the PepYMV. After that, pepper seeds chilli (Capsicum frutescens), pepper cambuci (Capsicum baccatum), lupita pepper (Capsicum annuum), pepper peak (chinense Capsicum) and pepper cayenne (Capsicum annuum), had been spread and inoculated with isolated viral for evaluation of possible sources of resistance the virus. In the test of resistance of the spread plants, only the pepper peak presented viral infection to the PepYMV. We can conclude that the other species of peppers are not susceptible to the viral isolate and can be studied in the future as sources of resistance.