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Soluble sugars, enzymatic activities and gene expression during development of coffee fruits submitted to shade condition. Repositório Alice
MARRACCINI, P.; GEROMEL, C.; FERREIRA, L. P.; PEREIRA, L. F. P.; LEROY, T.; POT, D.; DAVRIEUX, F.; RIBEYRE, F.; GUYOT, B.; SCHOLZ, M. B. S.; ANDROCIOLI FILHO, A.; VIEIRA, L. G. E.; MAZZAFERA, P..
Effects of shade (50% light) condition on development and sugar metabolism was analyzed in fruits of Coffea arabica L. var. IAPAR 59. Fresh weight measurements of separated tissues (pericarp, perisperm and endosperm) showed that the increased size observed in beans of shaded plants was correlated with high perisperm development. Reducing sugar contents in the pericarp and endosperm of fruits from shaded plants appeared higher than in the same tissues of control (?full-sun?) plants. On the contrary, sucrose content was slightly lower in shade than in control beans. At the enzymatic level, sucrose synthase activities detected in the latest stages (197-231 DAF) of perisperm development from shaded plants were higher than from of control, confirming the...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Sugar metabolism; Coffea arabica L. var.; IAPAR 59.
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/handle/doc/885784
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