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Pastor Corrales, Marcial A.[Traditional and molecular confirmation of the coevolution of beans and pathogens in Latin America]Traditional and molecular confirmation of the coevolution of beans and pathogens in Latin America

Bean rust (Uromyces phaseoli), a common disease with worldwide distribution, is considered one of the most important bean production problems in the tropics. Prolonged periods of moisture and moderate temp. (17-27 degrees C) favor disease development. The infection process begins when a urediospo...

La roya del frijol (Uromyces phaseoli) es una enfermedad a nivel mundial considerada como uno de los problemas mas importantes de la produccion de frijol en el tropico. Periodos prolongados de humedad y temp. moderadas (17-27 grados C) favorecen el desarrollo de la enfermedad. El proceso de infec...


Stavely, J.R.Pastor Corrales, Marcial A.[Rust]Rust

If we are to breed common bean (Phaseolus vulgaris L.) for durable resistance to diseases, we must understand pathogenic variation and find sources of resistance. Our first objective was to determine the patterns of pathogenic variation found among isolates of Phaeoisariopsis griseola (PG), the f...


Pastor Corrales, Marcial A.Jara, Carlos E.Singh, Shree P.[Pathogenic variation in, sources of, and breeding for resistance to Phaeoisariopsis griseola causing angular leaf spot in common bean]Pathogenic variation in, sources of, and breeding for resistance to Phaeoisariopsis griseola causing angular leaf spot in common bean
Otoya, María MercedesPastor Corrales, Marcial A.[Variación genética de Colletotrichum lindemuthianum en Colombia, Ecuador y Perú]Variación genética de Colletotrichum lindemuthianum en Colombia, Ecuador y Perú

Twenty-four Xanthomonas campestris pv. phaseoli and X. phaseoli var. fuscans isolates, obtained from different countries and isolated from different host plants (Phaseolus vulgaris and P. lunatus, among others), were compared with nonpathogenic isolates of Xanthomonas using the restriction fragme...


Otoya, María MercedesPastor Corrales, Marcial A.[Utilizacion de la tecnica de RFLP`s como herramienta para estudiar la diversidad genetica de los patogenos que causan la bacteriosis comun del frijol]Utilizacion de la tecnica de RFLP`s como herramienta para estudiar la diversidad genetica de los patogenos que causan la bacteriosis comun del frijol

Isolates of Pseudomonas syringae pv. phaseolicola from Africa and other bean growing areas were categorized into nine races on the basis of their reactions to eight differential cultivars following artificial inoculation. Eight hundred and ninety-three isolates representing 303 disease occurrence...


Taylor, JDTeverson, D.M.Allen, David J.Pastor Corrales, Marcial A.[Identification and origin of races of Pseudomonas syringae pv. phaseolicola from Africa and other bean growing areas]Identification and origin of races of Pseudomonas syringae pv. phaseolicola from Africa and other bean growing areas

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