ArticlePlant physiology2009
AtBXL1 encodes a bifunctional beta-D-xylosidase/alpha-L-arabinofuranosidase required for pectic arabinan modification in Arabidopsis mucilage secretory cells.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.
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Who cites it
76 citing papers in PubMed, 139 citations in OpenAlex.
- The role of plant cell walls in pest resistance: current insights and future perspectives.Journal of experimental botany · 2025Review
- Mucilicious methods: Navigating the tools developed to Arabidopsis Seed Coat Mucilage analysis.Cell surface (Amsterdam, Netherlands) · 2025Review
- Dynamic proteomics reveals that endosperm weakening plays a critical role during seed germination inFrontiers in plant science · 2025Article
- Kallfu and Wenutram: two Chilean flaxseed varieties with contrasting mucilage production, composition, and structure.Frontiers in plant science · 2025Article
- Pull the fuzes: Processing protein precursors to generate apoplastic danger signals for triggering plant immunity.Plant communications · 2024Review
- Disruption of theInternational journal of molecular sciences · 2024Article
- Unraveling cell wall polysaccharides during blueberry ripening: insights into the roles of rhamnogalacturonan-I and arabinogalactan proteins in fruit firmness.Frontiers in plant science · 2024Article
- Mucilage extracted from Chilean papaya seeds is enriched with homogalacturonan domains.Frontiers in plant science · 2024Article
- Article
- Xylobiose treatment triggers a defense-related response and alters cell wall composition.Plant molecular biology · 2023Article
- Genetic dissection of monosaccharides contents in rice whole grain using genome-wide association study.The plant genome · 2023Article
- Transcriptome, Ectopic Expression and Genetic Population Analysis Identify Candidate Genes for Fiber Quality Improvement in Cotton.International journal of molecular sciences · 2023Article
- The In Silico Characterization of Monocotyledonous α-l-Arabinofuranosidases on the Example of Maize.Life (Basel, Switzerland) · 2023Article
- Article
- The Genetic Control of SEEDSTICK and LEUNIG-HOMOLOG in Seed and Fruit Development: New Insights into Cell Wall Control.Plants (Basel, Switzerland) · 2022Article
- Cell wall-localized BETA-XYLOSIDASE4 contributes to immunity of Arabidopsis against Botrytis cinerea.Plant physiology · 2022Article
- Building an extensible cell wall.Plant physiology · 2022Article
- Rhamnogalacturonan-I forms mucilage: behind its simplicity, a cutting-edge organization.Journal of experimental botany · 2022Article
- A DE1 BINDING FACTOR 1-GLABRA2 module regulates rhamnogalacturonan I biosynthesis in Arabidopsis seed coat mucilage.The Plant cell · 2022Article
- The bHLH1-DTX35/DFR module regulates pollen fertility by promoting flavonoid biosynthesis inHorticulture research · 2022Article
16 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Following pollination, the epidermal cells of the Arabidopsis (Arabidopsis thaliana) ovule undergo a complex differentiation process that includes the synthesis and polar secretion of pectinaceous mucilage followed by the production of a secondary cell wall. Wetting of mature seeds leads to the rapid bursting of these mucilage secretory cells to release a hydrophilic gel that surrounds the seed and is believed to aid in seed hydration and germination. A novel mutant is identified where mucilage release is both patchy and slow and whose seeds display delayed germination. While developmental analysis of mutant seeds reveals no change in mucilage secretory cell morphology, changes in monosaccharide quantities are detected, suggesting the mucilage release defect results from altered mucilage composition. Plasmid rescue and cloning of the mutant locus revealed a T-DNA insertion in AtBXL1, which encodes a putative bifunctional beta-d-xylosidase/alpha-l-arabinofuranosidase that has been implicated as a beta-d-xylosidase acting during vascular development. Chemical and immunological analyses of mucilage extracted from bxl1 mutant seeds and antibody staining of developing seed coats reveal an increase in (1-->5)-linked arabinans, suggesting that BXL1 is acting as an alpha-l-arabinofuranosidase in the seed coat. This implication is supported by the ability to rescue mucilage release through treatment of bxl1 seeds with exogenous alpha-l-arabinofuranosidases. Together, these results suggest that trimming of rhamnogalacturonan I arabinan side chains is required for correct mucilage release and reveal a new role for BXL1 as an alpha-l-arabinofuranosidase acting in seed coat development.
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