ArticlePlanta2011
AXY3 encodes a α-xylosidase that impacts the structure and accessibility of the hemicellulose xyloglucan in Arabidopsis plant cell walls.
Article in Planta, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 68 citations in OpenAlex.
- Selected cell wall-associated components in plant defense responses against microbial pathogens.Frontiers in plant science · 2026Review
- Analysis of xyloglucan metabolism mutants highlights the prominent role of xylose cleavage in seed dormancy.The Plant journal : for cell and molecular biology · 2025Article
- Xyloglucan remodelling enzymes and the mechanics of plant seed and fruit biology.Journal of experimental botany · 2022Article
- Review
- Tailoring renewable materials via plant biotechnology.Biotechnology for biofuels · 2021Review
- Molecular investigation of Tuscan sweet cherries sampled over three years: gene expression analysis coupled to metabolomics and proteomics.Horticulture research · 2021Article
- Golgi-localized exo-β1,3-galactosidases involved in cell expansion and root growth inThe Journal of biological chemistry · 2020Article
- Genetic and signalling pathways of dry fruit size: targets for genome editing-based crop improvement.Plant biotechnology journal · 2020Review
- Plant Cell Walls Tackling Climate Change: Insights into Plant Cell Wall Remodeling, Its Regulation, and Biotechnological Strategies to Improve Crop Adaptations and Photosynthesis in Response to Global Warming.Plants (Basel, Switzerland) · 2020Review
- Xyloglucans and Microtubules Synergistically Maintain Meristem Geometry and Phyllotaxis.Plant physiology · 2019Article
- Xyloglucan exoglycosidases in the monocot model Brachypodium distachyon and the conservation of xyloglucan disassembly in angiosperms.Plant molecular biology · 2019Article
- Glycosylphosphatidylinositol-Anchored Proteins inFrontiers in plant science · 2019Review
- Characterization of the hypersensitive response-like cell death phenomenon induced by targeting antiviral lectin griffithsin to the secretory pathway.Plant biotechnology journal · 2018Article
- Monitoring Polysaccharide Dynamics in the Plant Cell Wall.Plant physiology · 2018Review
- Xyloglucan Fucosylation Modulates Arabidopsis Cell Wall Hemicellulose Aluminium binding Capacity.Scientific reports · 2018Article
- Analysis of Xyloglucan Composition inBio-protocol · 2017Article
- Soluble and Membrane-Bound β-Glucosidases Are Involved in Trimming the Xyloglucan Backbone.Plant physiology · 2017Article
- Review
- α-Xylosidase plays essential roles in xyloglucan remodelling, maintenance of cell wall integrity, and seed germination in Arabidopsis thaliana.Journal of experimental botany · 2016Article
- Cell wall dynamics during apple development and storage involves hemicellulose modifications and related expressed genes.BMC plant biology · 2016Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Xyloglucan is the most abundant hemicellulose in the walls of dicots such as Arabidopsis. It is part of the load-bearing structure of a plant cell and its metabolism is thought to play a major role in cell elongation. However, the molecular mechanism by which xyloglucan carries out this and other functions in planta is not well understood. We performed a forward genetic screen utilizing xyloglucan oligosaccharide mass profiling on chemically mutagenized Arabidopsis seedlings to identify mutants with altered xyloglucan structures termed axy-mutants. One of the identified mutants, axy3.1, contains xyloglucan with a higher proportion of non-fucosylated xyloglucan subunits. Mapping revealed that axy3.1 contains a point mutation in XYLOSIDASE1 (XYL1) known to encode for an apoplastic glycoside hydrolase releasing xylosyl residues from xyloglucan oligosaccharides at the non-reducing end. The data support the hypothesis that AXY3/XYL1 is an essential component of the apoplastic xyloglucan degradation machinery and as a result of the lack of function in the various axy3-alleles leads not only to an altered xyloglucan structure but also a xyloglucan that is less tightly associated with other wall components. However, the plant can cope with the excess xyloglucan relatively well as the mutant does not display any visible growth or morphological phenotypes with the notable exception of shorter siliques and reduced fitness. Taken together, these results demonstrate that plant apoplastic hydrolases have a larger impact on wall polymer structure and function than previously thought.
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