ArticleJournal of experimental botany2019
Significant influence of lignin on axial elastic modulus of poplar wood at low microfibril angles under wet conditions.
Article in Journal of experimental botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 41 citations in OpenAlex.
- Emergence of lignin-carbohydrate interactions during plant stem maturation visualized by solid-state NMR.Nature communications · 2025Article
- Rapid High-Resolution Analysis of Polysaccharide-Lignin Interactions in Secondary Plant Cell Walls Using Proton-Detected Solid-State NMR.Analytical chemistry · 2025Article
- QTL-Seq and Fine-Mapping Analyses Identify QTL and Candidate Genes Controlling Snake-like Pod Surface Trait in Vegetable Cowpea Yardlong Bean.Plants (Basel, Switzerland) · 2025Article
- Characterization of caffeoyl shikimate esterase gene family identifies CsCSE5 as a positive regulator of Podosphaera xanthii and Corynespora cassiicola pathogen resistance in cucumber.Plant cell reports · 2023Article
- Therapeutic Modulation of Cell Morphology and Phenotype of Diseased Human Cells towards a Healthier Cell State Using Lignin.Polymers · 2023Article
- Strong, Shape-Memory Lignocellulosic AerogelACS nano · 2023Article
- Article
- Twist and lock: nutshell structures for high strength and energy absorption.Royal Society open science · 2021Article
- Beyond What Meets the Eye: Imaging and Imagining Wood Mechanical-Structural Properties.Advanced materials (Deerfield Beach, Fla.) · 2021Review
- Wood and the Activity of Dead Tissue.Advanced materials (Deerfield Beach, Fla.) · 2021Review
- Chemical and Structural Responses to DownregulatedFrontiers in plant science · 2021Article
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Authors and funding
6 authors at 4 institutions in 5 countries.
Funding
Abstract
Wood is extensively used as a construction material. Despite increasing knowledge of its mechanical properties, the contribution of the cell-wall matrix polymers to wood mechanics is still not well understood. Previous studies have shown that axial stiffness correlates with lignin content only for cellulose microfibril angles larger than around 20°, while no influence is found for smaller angles. Here, by analysing the wood of poplar with reduced lignin content due to down-regulation of CAFFEOYL SHIKIMATE ESTERASE, we show that lignin content also influences axial stiffness at smaller angles. Micro-tensile tests of the xylem revealed that axial stiffness was strongly reduced in the low-lignin transgenic lines. Strikingly, microfibril angles were around 15° for both wild-type and transgenic poplars, suggesting that cellulose orientation is not responsible for the observed changes in mechanical behavior. Multiple linear regression analysis showed that the decrease in stiffness was almost completely related to the variation in both density and lignin content. We suggest that the influence of lignin content on axial stiffness may gradually increase as a function of the microfibril angle. Our results may help in building up comprehensive models of the cell wall that can unravel the individual roles of the matrix polymers.
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Registered trials
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