The accumulation and regulation of malate in fruit cell

Fruit acidity is an important component of flavor quality in fleshy fruit. The accumulation of malate, the dominant organic acid in the acidity formation of most mature fruit, is highly regulated by metabolism and transportation during fruit development. While, the knowledge is still limited about the mechanism of fruit acidification, as well as the major genes and substances. In the present paper, the research advance on the relevance between the malate accumulation and the genes associated with malate metabolism and transportation, as well as the transcriptional regulation of malate in fruit was reviewed. Furthermore, the positive future research could provide theoretical reference for the optimization of fruit quality and genetic improvement.