Fruit Salad in the Lab: Comparing Botanical Species to Help Deciphering Fruit Primary Metabolism

Frontiers in Plant Science

Yves Gibon¹  Stéphane Bernillon¹  Annick Moing¹  Eric Gomès²  Zhanwu Dai²  Léa Roch³  Jiaojiao Wang³ 

[1] Plateforme Métabolome Bordeaux, CGFB, MetaboHUB-PHENOME, IBVM, Centre INRA de Bordeaux, Bordeaux, France;UMR 1287 EGFV, INRA, Bordeaux Sciences Agro, Université de Bordeaux, Bordeaux, France;UMR1332 Biologie du Fruit et Pathologie, Centre INRA de Bordeaux, INRA, Université de Bordeaux, Bordeaux, France;

关键词: amino acids;    cross-species;    fleshy fruit;    inter-species;    metabolism regulation;    organic acids;   

DOI  :  10.3389/fpls.2019.00836

来源: DOAJ

【 摘 要 】

Although fleshy fruit species are economically important worldwide and crucial for human nutrition, the regulation of their fruit metabolism remains to be described finely. Fruit species differ in the origin of the tissue constituting the flesh, duration of fruit development, coordination of ripening changes (climacteric vs. non-climacteric type) and biochemical composition at ripeness is linked to sweetness and acidity. The main constituents of mature fruit result from different strategies of carbon transport and metabolism. Thus, the timing and nature of phloem loading and unloading can largely differ from one species to another. Furthermore, accumulations and transformations of major soluble sugars, organic acids, amino acids, starch and cell walls are very variable among fruit species. Comparing fruit species therefore appears as a valuable way to get a better understanding of metabolism. On the one hand, the comparison of results of studies about species of different botanical families allows pointing the drivers of sugar or organic acid accumulation but this kind of comparison is often hampered by heterogeneous analysis approaches applied in each study and incomplete dataset. On the other hand, cross-species studies remain rare but have brought new insights into key aspects of primary metabolism regulation. In addition, new tools for multi-species comparisons are currently emerging, including meta-analyses or re-use of shared metabolic or genomic data, and comparative metabolic flux or process-based modeling. All these approaches contribute to the identification of the metabolic factors that influence fruit growth and quality, in order to adjust their levels with breeding or cultural practices, with respect to improving fruit traits.

【 授权许可】

Unknown