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      Identificación de enfermedades virósicas transmitidas por semillas de poroto (Vigna unguiculata (L.) Walp.) Translated title: Identification of viral diseases transmitted by bean (Vigna unguiculata (L.) Walp.) seeds

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          Abstract

          Los experimentos se realizaron en la Facultad de Ciencias Agrarias de la Universidad Nacional de Asunción, San Lorenzo, Paraguay. El periodo de ejecución estuvo comprendido entre los meses de enero a abril de 2013, este trabajo se realizó con el objetivo de detectar enfermedades virales transmitidas por semillas de poroto (Vigna unguiculata (L.) Walp.), mediante pruebas biológicas y serológicas. Se recolectaron muestras de seis variedades de semillas y plantas de poroto de parcelas infectadas, ubicadas en el Campo experimental del Instituto Paraguayo de Tecnología Agraria (IPTA), Choré, Departamento de San Pedro. Se realizó la siembra de las semillas colectadas, de las variedades San Francisco, Crema Ñu, Chore S·BR1 Poty, Negro, Crema Japonés y Moteado. Las plantas resultantes que presentaron síntomas fueron sometidas al test de ELISA utilizando anticuerpos específicos a los virus Cowpea severe mosaic virus (CpSMV) y Cowpea aphid-borne mosaic virus (CABMV) respectivamente, de manera a detectar la transmisión del virus por semillas. Posteriormente, a partir del material foliar macerado, de las muestras que dieron reacciones positivas en el test, se realizaron inoculaciones mecánicas a plantas sanas de tres especies indicadoras: Chenopodium amaranticolor, Vigna unguiculata y Sesamun indicum. Todas las variedades de poroto dieron positivo al CABMV y al CpSMV solo las variedades negro y moteado. Se detectó la transmisión del CABMV a través de semillas de poroto de la variedad San Francisco, presentando un porcentaje de transmisión del 6%.

          Translated abstract

          The experiments were conducted at the Facultad de Ciencias Agrarias of the Universidad Nacional de Asunción, San Lorenzo, Paraguay. The implementation period was from January to April 2013, with the aim of detecting seed-borne viral disease of bean (Vigna unguiculata (L.) Walp.), by biological and serological tests. For this purpose samples were collected from six (6) varieties of seeds and plants of V. unguiculata infected plots located in the experimental field of the Instituto Paraguayo de Tecnología Agraria (IPTA), Chore, Department of San Pedro. It was performed the sowing of the seeds collected, San Francisco, Crema Ñu, Chore S-BR1 Poty, Negro, Crema Japonés, Moteado. The resulting plants with symptoms were subjected to ELISA test using specific antibodies to the virus Cowpea severe mosaic virus (CPSMV) and Cowpea aphid-borne mosaic virus (CABMV), respectively, so as to detect the transmission of the virus by seeds. Subsequently, from macerated leaf material samples that gave positive reactions in the test, mechanical inoculations were performed to three healthy plants indicator species: Chenopodium amaranticolor, Vigna unguiculata and Sesamum indicum. All varieties tested were positive to CABMV but only the Negro and Moteado varieties were positive to CpSMV. Transmission of CABMV through bean seeds of the variety San Francisco was detected, having a transmission rate of 6%.

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          Detection and identification of seed-borne viruses from cowpea (Vigna unguiculata (L.) Walp.) germplasm

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            Serological detection of seed borne viruses in cowpea regenerated germplasm using protein a sandwich enzyme linked immunorsorbent assay

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              Reacción de genotipos de frijol revela resistencia a la co-infección por el virus del mosaico del pepino, virus del mosaico del caupí transmitidas por áfidos y el virus del mosaico del caupí severa.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                ia
                Investigación Agraria
                Investig. Agrar.
                Facultad de Ciencias Agrarias, UNA. (San Lorenzo, , Paraguay )
                2305-0683
                December 2014
                : 16
                : 2
                : 93-98
                Affiliations
                [01] orgname1 Facultad de Ciencias Agrarias, Universidad Nacional de Asunción. San Lorenzo, Paraguay.
                Article
                S2305-06832014000200003
                3bedce37-6a7b-4516-a754-d96d73f58ebd

                This work is licensed under a Creative Commons Attribution 4.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 17, Pages: 6
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                SciELO Paraguay

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                Artículos Científicos

                Vigna unguiculata (L.) Walp.,,CABMV,,CpSMV,,virus.,Vigna unguiculata (L.) Walp.,virus

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