You Want it Sweeter: How Glycosylation Affects Plant Response to Oxidative Stress

Oxidative stress is a cellular threat which puts at risk the productivity of most of crops valorized by humankind in terms of food, feed, biomaterial, or bioenergy. It is therefore of crucial importance to understand the mechanisms by which plants mitigate the deleterious effects of oxidizing agents...

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Published inFrontiers in plant science Vol. 11; p. 571399
Main Authors Behr, Marc, Neutelings, Godfrey, El Jaziri, Mondher, Baucher, Marie
Format Journal Article
LanguageEnglish
Published Frontiers 16.09.2020
Frontiers Media S.A
Subjects
abiotic stress
biotic stress
Chemical Sciences
flavonoid
glucosidase
or physical chemistry
phytohormone
Plant Science
redox homeostasis
Theoretical and
glucosidase
biotic stress
redox homeostasis
UDP-glycosyltransferase (UGT)
flavonoid
ROS—reactiveoxygen species
abiotic stress
phytohormone
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Summary:Oxidative stress is a cellular threat which puts at risk the productivity of most of crops valorized by humankind in terms of food, feed, biomaterial, or bioenergy. It is therefore of crucial importance to understand the mechanisms by which plants mitigate the deleterious effects of oxidizing agents. Glycosylation of antioxidant molecules and phytohormones modifies their chemical properties as well as their cellular and histological repartition. This review emphasizes the mechanisms and the outcomes of this conjugation reaction on plant ability to face growing conditions favoring oxidative stress, in mirror with the activity of deglycosylating enzymes. Pioneer evidence bridging flavonoid, glycosylation, and redox homeostasis paved the way for numerous functional analyses of UDP-glycosyltransferases (UGTs), such as the identification of their substrates and their role to circumvent oxidative stress resulting from various environmental challenges. (De)glycosylation appears as a simple chemical reaction regulating the biosynthesis and/or the activity of a myriad of specialized metabolites partaking in response to pathogen and abiotic stresses. This outcome underlies the possibility to valorize UGTs potential to upgrade plant adaptation and fitness in a rising context of sub- optimal growing conditions subsequent to climate change.
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This article was submitted to Plant Metabolism and Chemodiversity, a section of the journal Frontiers in Plant Science
Edited by: José Manuel Palma, Consejo Superior de Investigaciones Científicas (CSIC), Spain
Reviewed by: Yanjie Li, Shandong University, China; Xuebin Zhang, Henan University, China
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2020.571399