Bases fisiológicas y moleculares de la acción de los herbicidas. Absorción: radicular y foliar. Factores que la modifican. Translocación: apoplasto y simplasto ;. É absorvido na forma de Mn2+ pelas raízes e acumulado nos compartimentos do apoplasto e simplasto em três frações distintas: a forma trocável, referente ao. Embora ainda não existam técnicas que permitam uma definição clara se o Al está no simplasto ou no apoplasto, técnicas de fracionamento ou de coloração.

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Breeding for aluminum tolerance is considered a useful way to improve important economic plants’ performance in acid soils with high concentration of this metal, as those which occur in South Brazil. However, for this, it is necessary to identify aluminum-tolerant genotypes, to understand aluminum phytotoxicity and tolerance mechanisms, and to know genetic control of this tolerance. This paper presents a review of these subjects, with emphasis on aluminum forms present in soils, their effect over the plants, the stage of knowledge on aluminum tolerance mechanisms and their genetic control in different cereal groups.

EmRYAN simplawto al. Entretanto, emRYAN et al. Cada uma dessas metodologias tem vantagens e desvantagens distintas. Homeologous relationship of rice, wheat and maize chromosomes. Molecular and General GeneticsBerlin, v. Genetics of tolerance to aluminum in wheat Triticum aestivum L.

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