New Challenges for the Design of High Value Plant Products: Stabilization of Anthocyanins in Plant Vacuoles

Frontiers in Plant Science
Valentina PasseriFrancesca Quattrocchio

Abstract

In the last decade plant biotechnologists and breeders have made several attempt to improve the antioxidant content of plant-derived food. Most efforts concentrated on increasing the synthesis of antioxidants, in particular anthocyanins, by inducing the transcription of genes encoding the synthesizing enzymes. We present here an overview of economically interesting plant species, both food crops and ornamentals, in which anthocyanin content was improved by traditional breeding or transgenesis. Old genetic studies in petunia and more recent biochemical work in brunfelsia, have shown that after synthesis and compartmentalization in the vacuole, anthocyanins need to be stabilized to preserve the color of the plant tissue over time. The final yield of antioxidant molecules is the result of the balance between synthesis and degradation. Therefore the understanding of the mechanism that determine molecule stabilization in the vacuolar lumen is the next step that needs to be taken to further improve the anthocyanin content in food. In several species a phenomenon known as fading is responsible for the disappearance of pigmentation which in some case can be nearly complete. We discuss the present knowledge about the genetic and biochem...Continue Reading

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Citations

Apr 4, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Yunting ZhangHaoru Tang
Apr 6, 2019·Journal of Experimental Botany·Misha PaauwFrancesca M Quattrocchio
Oct 23, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Changyeong Jo, Sunggil Kim
May 18, 2018·FEMS Yeast Research·Michael EichenbergerMichael Naesby
Aug 23, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Roberto MattioliPaula Silva
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Jan 26, 2021·Frontiers in Plant Science·Doekele G StavengaCasper J van der Kooi
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Feb 20, 2021·Journal of Experimental Botany·Ryan M PatrickYing Li
Sep 14, 2018·ACS Synthetic Biology·Teresa CorderoJosé-Antonio Daròs
Oct 16, 2020·Journal of Agricultural and Food Chemistry·Boyan TangGuoping Chen

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Methods Mentioned

BETA
transgenic
Glucosylation

Software Mentioned

Moondust
Moonshadow
FADING

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