We further highlight the functional significance of changes in organic acid profile in fruits due to either the manipulation of fruit-specific genes or the use of fruit-specific promoters. Although different organic acid species can be found during fruit development in general, it appears that citrate and malate play major roles in this process, as they accumulate on a broad range of climacteric and non-climacteric fruits.
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By analyzing the metabolic content of different fruits during their ontogenetic trajectory, we noticed that the content of organic acids in the early stages of fruit development is directly related to the supply of substrates for respiratory processes. Here, we critically review the connection between organic acids and the development of both climacteric and non-climacteric fruits. Perhaps less well-known is the growing body of evidence suggesting that organic acids play a key function in plant development and, in particular, in fruit development, maturation and ripening. The pivotal role of phytohormones during fruit development and ripening is considered established knowledge in plant biology.
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1Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Brazil.Ribeiro 1, Agustín Zsögön 1* and Wagner L. Medeiros 1,2, Adriano Nunes-Nesi 1, Dimas M.