Advances in Botanical Research

1st Edition, Volume 104 - July 1, 2022
Editor: Richard Sibout
Language: English
Hardback ISBN:
9 7 8 - 0 - 3 2 3 - 9 1 2 2 0 - 4
eBook ISBN:
9 7 8 - 0 - 3 2 3 - 9 1 4 7 3 - 4

Lignin is a large phenolic polymer found in the cell wall of most land plants. Volume ABR104, provides in-depth reviews on the most recent discoveries in the field. It revisits th… Read more

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Lignin is a large phenolic polymer found in the cell wall of most land plants. Volume ABR104, provides in-depth reviews on the most recent discoveries in the field. It revisits the lignin paradigm and reviews the occurrence of unconventional lignin precursors that are derived from both the monolignol biosynthetic pathway, and from other polyphenolic biosynthetic pathways. The volume encompasses the most recent data about the regulation of lignin biosynthesis in a environment of polysaccharides, the importance of oxidases, the pivotal role of feruloylation and coumaroylation of the cell wall both in the lignified stem and in the cereal grain. The volume gives an important part to the transcriptional regulation at different scales. At last, vibrational and fluorescence microscopy methods to characterize the lignin-decorated cell wall as well the most recent bioengineering approaches towards lignin modification are reviewed.

Cover image
Title page
Table of Contents
Copyright
Contributors
Preface
Dedication
Chapter One: Unconventional lignin monomers—Extension of the lignin paradigm
Abstract
1: Introduction
2: Canonical monolignols and unconventional lignin monomers derived from the monolignol biosynthetic pathway
3: Lignin monomers derived from beyond the monolignol biosynthetic pathway
4: Conclusions and perspectives
Acknowledgments
References
Chapter Two: Lignin synthesis and bioengineering approaches toward lignin modification
Abstract
1: Introduction
2: Gene editing approaches
3: Lignin engineering via post-transcriptional modifications
4: Lignin engineering via post-translational modifications
5: Modification of enzymes cofactors and co-substrates
6: Modification of monolignols and metabolic precursors
7: Conclusions and perspectives
Acknowledgments
References
Chapter Three: Glycobiology of the plant secondary cell wall dynamics
Abstract
1: Introduction: Composition and occurrence of secondary cell walls
2: Glycosyltransferases and biosynthesis of secondary cell wall polysaccharides
3: Glycosylation of secondary cell wall proteins
4: UDP-glycosyltransferases and glycosylation of monolignols
Acknowledgments
References
Chapter Four: Oxidative enzymes in lignification
Abstract
1: Introduction
2: Lignin deposition depends on oxidative activity of laccases (LACs) and peroxidases (PRXs)
3: Activity and localization of LACs and PRXs controls lignin deposition in different cell wall regions
4: Assessment of candidate LACs and PRXs
5: Conclusions and future outlook
References
Chapter Five: Ferulic and coumaric acids in the cereal grain: Occurrence, biosynthesis, biological and technological functions
Abstract
1: Introduction
2: Ferulic and p-coumaric acids in cereal grains: Soluble and bound hydroxycinnamic acids
3: Ferulic and p-coumaric acids in cereal grains: Variability in content and distribution
4: Biosynthesis of ferulic and p-coumaric acids, polymer acylation, cross-linkages
5: Biological functions in cell wall architecture and in tissue protection
6: Technological and nutritional impact of FA
7: Conclusion
References
Chapter Six: In situ imaging of lignin and related compounds by Raman, Fourier-transform infrared (FTIR) and fluorescence microscopy
Abstract
1: Introduction
2: Data analysis
3: Fluorescence imaging
4: Raman imaging
5: Fourier-transform infrared (FTIR) spectroscopic imaging
6: Summary
References
Chapter Seven: Spatio-temporal regulation of lignification
Abstract
1: Introduction
2: Localization, function, and composition of the lignins in plants
3: Developmental regulation of lignification
4: Environmental regulation of lignin deposition
5: Conclusion
Acknowledgments
References
Chapter Eight: Transcriptional regulation of secondary cell wall formation and lignification
Abstract
1: Introduction
2: A semi-hierarchical transcriptional regulatory network regulates secondary cell wall formation
3: Much of the same, yet one of a kind: Conservation and divergence of secondary cell wall transcriptional control
4: Post-translational and combinatorial regulation of lignification
5: Conclusion and future challenges
References
Chapter Nine: Regulation of secondary cell wall lignification by abiotic and biotic constraints
Abstract
1: Introduction
2: Objective
3: Transcriptional regulation of the lignin pathway
4: Posttranscriptional regulation of lignin biosynthesis under stress
5: Posttranslational regulation of lignin biosynthesis under stress
6: Concluding remarks
Acknowledgments
References

Richard Sibout

Richard Sibout works as a researcher at the National Research Institute for Agriculture, Food and the Environment (INRAE) in France. After studying plant biology and forestry, he began his career in a plant laboratory at Versailles (France) under the supervision of Dr. Lise Jouanin and Prof. Catherine Lapierre. Fascinated by science, Richard moved to Canada and obtained a PhD in forest biology from the Université Laval (Québec, Canada) under the scientific direction of Dr. Armand Séguin and Prof. John Mackay in 2005. During his PhD, he mainly focused his research on the last step of monolignol biosynthesis in Arabidopsis thaliana. After a short stay at McGill University in Montreal (Canada), he moved to the University of Lausanne in Switzerland as a postdoc in Prof. Christian Hardtke’s research group. During almost four years, Richard Sibout worked on different projects including root development, photobiology, and plant secondary development. In 2011, he took over the leadership of the “secondary cell wall » research team at the INRAE Laboratory IJPB (Versailles, France) and studied lignin biosynthesis both in Arabidopsis and Brachypodium, a new model for grasses. With the help of his colleagues, he developed a large collection of Brachypodium mutants useful for forward and reverse genetic studies. He established several fruitful international collaborations, including with the Joint Genome Institute (Berkeley, USA) to promote Brachypodium resources. He was also hosted as a visiting researcher at the University of British Columbia (Vancouver, Canada) in the Lacey Samuel’s lab from 2015 to 2017. Since February 2018, Richard Sibout is part of the team “Plant Cell Wall and Polymers” (PVPP) of the BIA Unit (INRAE, Nantes, France). As a biologist specialized in Brachypodium genomics and in plant cell wall formation, and particularly in lignification mechanisms, he is currently studying the factors responsible for plant biomass composition and structure, in order to understand and improve lignocellulose digestibility for biorefinery and feedstock.

Affiliations and expertise

Institut National de Recherche pour l’Agriculture, l’alimentation et l’Environnement (INRAE)

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Advances in Botanical Research

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