The flavor substances of tomato(Solanum lycopersicum)in tomatoes are mainly composed of soluble sugars(such as glucose and fructose),organic acids(citric acid and malic acid,etc.)and volatile substances(alcohols and esters,etc.).Tomato also contains various functional components,such as ascorbic acid,lycopene,γ-aminobutyric acid,vitamin D and vitamin E.These components endow tomato fruit with important health functions.In this review,the composition,synthetic pathway and regulatory mechanism of flavor and functional components have been analyzed in tomato to create tomato germplasm that is rich in flavor substances and functional components through gene editing in the future.This lays the groundwork for cultivating functional tomato with good flavor.
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