ArticleThe Plant journal : for cell and molecular biology2023
Grass xylan structural variation suggests functional specialization and distinctive interaction with cellulose and lignin.
Article in The Plant journal : for cell and molecular biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 64 citations in OpenAlex.
- A chemoproteomic biotechnological toolkit for resolving xylanase specificity in decorated xylan.Nature communications · 2026Article
- Native Architecture of Wheat Straw Cell Walls: A Unified Model from X-ray Scattering and Solid-State NMR.Journal of the American Chemical Society · 2026Article
- Plant cell walls as a key driver of plant-pathogen coevolution.FEMS microbiology reviews · 2026Review
- Arabinoxylan and pectin features differentiate maize inbred lines with contrasting Fusarium stalk rot resistance.Frontiers in plant science · 2026Article
- GT61 β-1,2-xylosyltransferases define a conserved xylan modification in gymnosperm and Arabidopsis primary cell walls.The Plant journal : for cell and molecular biology · 2025Article
- Wood decay under anoxia by the brown-rot fungus Fomitopsis pinicola.Nature communications · 2025Article
- Cell walls: a comparative view of the composition of cell surfaces of plants, algae, and microorganisms.Journal of experimental botany · 2025Review
- Enzymatic characterization and docking simulation of a xylan synthase catalytic subunit,Plant biotechnology (Tokyo, Japan) · 2025Article
- Fungal Coculture: Unlocking the Potential for Efficient Bioconversion of Lignocellulosic Biomass.Journal of fungi (Basel, Switzerland) · 2025Review
- In planta ectopic expression of two subtypes of tomato cellulose synthase-like M genes affects cell wall integrity and supports a role in arabinogalactan and/or rhamnogalacturonan-I biosynthesis.Plant & cell physiology · 2025Article
- Structure, Modification Pattern, and Conformation of Hemicellulose in Plant Biomass.Journal of applied glycoscience · 2025Review
- XYLAN O-ACETYLTRANSFERASE 6 promotes xylan synthesis by forming a complex with IRX10 and governs wall formation in rice.The Plant cell · 2024Article
- The plant cell wall-dynamic, strong, and adaptable-is a natural shapeshifter.The Plant cell · 2024Review
- Structure and growth of plant cell walls.Nature reviews. Molecular cell biology · 2024Review
- Article
- Silencing ScGUX2 reduces xylan glucuronidation and improves biomass saccharification in sugarcane.Plant biotechnology journal · 2024Article
- A conditional mutation in a wheat (Triticum aestivum L.) gene regulating root morphology.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Grass lignin: biosynthesis, biological roles, and industrial applications.Frontiers in plant science · 2024Review
- Signals and Their Perception for Remodelling, Adjustment and Repair of the Plant Cell Wall.International journal of molecular sciences · 2023Review
- Editorial: The plant cell wall: advances and current perspectives.Frontiers in plant science · 2023Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
Xylan is the most abundant non-cellulosic polysaccharide in grass cell walls, and it has important structural roles. The name glucuronoarabinoxylan (GAX) is used to describe this variable hemicellulose. It has a linear backbone of β-1,4-xylose (Xyl) residues that may be substituted with α-1,2-linked (4-O-methyl)-glucuronic acid (GlcA), α-1,3-linked arabinofuranose (Araf), and sometimes acetylation at the O-2 and/or O-3 positions. The role of these substitutions remains unclear, although there is increasing evidence that they affect the way xylan interacts with other cell wall components, particularly cellulose and lignin. Here, we used substitution-dependent endo-xylanase enzymes to investigate the variability of xylan substitution in grass culm cell walls. We show that there are at least three different types of xylan: (i) an arabinoxylan with evenly distributed Araf substitutions without GlcA (AXe); (ii) a glucuronoarabinoxylan with clustered GlcA modifications (GAXc); and (iii) a highly substituted glucuronoarabinoxylan (hsGAX). Immunolocalization of AXe and GAXc in Brachypodium distachyon culms revealed that these xylan types are not restricted to a few cell types but are instead widely detected in Brachypodium cell walls. We hypothesize that there are functionally specialized xylan types within the grass cell wall. The even substitutions of AXe may permit folding and binding on the surface of cellulose fibrils, whereas the more complex substitutions of the other xylans may support a role in the matrix and interaction with other cell wall components.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.