2 resultados para Y20 - Introductions and Prefaces

em Portal de Revistas Científicas Complutenses - Espanha


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In order to clarify the role of Pl2 resistance gene in differentiation the pathogenicity in Plasmopara halstedii (sunflower downy mildew), analyses were carried out in four pathotypes: isolates of races 304 and 314 that do not overcome Pl2 gene, and isolates of races 704 and 714 that can overcome Pl2 gene. Based on the reaction for the P. halstedii isolates to sunflower hybrids varying only in Pl resistance genes, isolates of races 704 and 714 were more virulent than isolates of races 304 and 314. Index of aggressiveness was calculated for pathogen isolates and revealed the presence of significant differences between isolates of races 304 and 314 (more aggressive) and isolates of races 704 and 714 (less aggressive). There were morphological and genetic variations for the four P. halstedii isolates without a correlation with pathogenic diversity. The importance of the Pl2 resistance gene to differentiate the pathogenicity in sunflower downy mildew was discussed.

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El presente artculo trata de ofrecer una lectura esttica y poltica de la Antologa de la poesa hispanoamericana que publicara Leopoldo Panero entre 1944 y 1945 bajo proteccin gubernamental. Para ello se parte de la particular biografa del escritor astorgano, su relacin en los aos treinta con los poetas hispanoamericanos especialmente Vallejo y Neruda y su gira por Amrica ya como supuesto prohombre del rgimen franquista en 1949 y 1954. La lectura sistemtica de sus prlogos y seleccin de poetas revela la particular visin de Panero sobre Hispanoamrica, mediatizada por el concepto imperial de Falange pero formulada bajo su propia visin de lo que la lrica americana representa para la lengua castellana. Se sostiene as en estas lneas la tesis de que los postulados de Panero representan, a pesar de todo, una opcin mucho ms compleja de lo que se suele considerar.