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Gene expression of antioxidant enzymes and coffee seed quality during pre-and post- physiological maturity. Repositório Alice
SANTOS, F. C.; CAIXETA, F.; CLEMENTE, A. C. S.; PINHO, E. V.; ROSA, S. D. V. F. da.
Seeds collected at different maturation stages vary in physiological quality and patterns of protective antioxidant systems against deterioration. In this study we investigated the expression of genes that codify catalase (CAT), dismutase superoxide (SOD), and polyphenol oxidase (PPO) during the pre- and post-physiological maturation phases in whole seeds and in endosperms and embryos extracted from the seeds. Coffea arabica L. berries were collected at the green, yellowish-green, cherry, over-ripe, and dry stages, and the seeds were examined physiologically. The transcription levels of the genes were quantified by quantitative real-time polymerase chain reaction using coffee-specific primers. The highest level of SOD expression was observed in the...
Tipo: Artigo de periódico Palavras-chave: Catalace.; Superoxide dismutase; Catechol oxidase..
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1039772
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