Changes in acidity and in proton transport at the tonoplast of grape berries during development

Abstract

As in many fruits, the induction of grape berry (Vitis vinifera L.) ripening results in intense breakdown of malic acid. Using membrane fractions, we tested the hypothesis that changes in acidity resulted from malate vacuolar decompartmentation. The hydrolytic activities of the two primary vacuolar pumps inorganic pyrophosphatase (V-PPase; EC 3.6.1.1) and… (More)
DOI: 10.1007/s004250000472

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