Fluctuations in sugar content are not determinant in explaining variations in vitamin C in tomato fruit

Plant Physiology and Biochemistry : PPB
Capucine MassotHélène Gautier

Abstract

The present study aimed to clarify the relationship between sugars and vitamin C in fruit. The objective was to determine whether vitamin C content was regulated by sugar content due to the role of sugar as a precursor for vitamin C. During summer, maximal content in sugar and vitamin C were found in both genotypes tested Solanum lycopersicon 'Cervil' and 'Levovil'. During autumn, fruit pruning increased fruit size and hexose content but fruit vitamin C content did not increase. Therefore sugar substrate was not limiting for vitamin C synthesis during autumn. We demonstrated for two cultivars, 'Cervil' and 'Levovil', with different sugar accumulation profiles during ripening, that sugar content was not determinant in the regulation of vitamin C content. The strong correlation observed between sugars and vitamin C in 'Cervil' was due to their concomitant increase during fruit ripening.

References

May 1, 1996·Biochemical Society Transactions·N Smirnoff, J E Pallanca
Mar 12, 2004·Annual Review of Plant Physiology and Plant Molecular Biology·Sjef Smeekens
Aug 17, 2006·Journal of Agricultural and Food Chemistry·Rebecca StevensMathilde Causse
Sep 1, 2009·Current Opinion in Plant Biology·Johannes Hanson, Sjef Smeekens

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Citations

Oct 31, 2012·Journal of Experimental Botany·Noé GestRebecca Stevens
May 3, 2018·Annals of Botany·Bertrand BeauvoitYves Gibon
Jan 17, 2020·Plants·Laise Rosado-SouzaFayezeh Aarabi
Nov 2, 2019·Antioxidants·Costantino PaciollaMaria Concetta de Pinto
Nov 1, 2013·Functional Plant Biology : FPB·Julienne FanwouaLeo F M Marcelis

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