ArticleThe New phytologist2019
TRM4 is essential for cellulose deposition in Arabidopsis seed mucilage by maintaining cortical microtubule organization and interacting with CESA3.
Article in The New phytologist, 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, 28 citations in OpenAlex.
- TON1 and FASS are required to recruit myosin VIII, a cell division guidance factor.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Microtubule Regulation in Plants: From Morphological Development to Stress Adaptation.Biomolecules · 2023Review
- Identification of the egusi seed trait locus (eg) and its suppressor gene associated with the thin seed coat trait in watermelon.Frontiers in plant science · 2023Article
- Genetic control of tolerance to drought stress in soybean.BMC plant biology · 2022Article
- A natural mutation of theHorticulture research · 2022Article
- Down-regulation of OsMYB103L distinctively alters beta-1,4-glucan polymerization and cellulose microfibers assembly for enhanced biomass enzymatic saccharification in rice.Biotechnology for biofuels · 2021Article
- Two β-glucuronosyltransferases involved in the biosynthesis of type II arabinogalactans function in mucilage polysaccharide matrix organization in Arabidopsis thaliana.BMC plant biology · 2021Article
- FASCICLIN-LIKE 18 Is a New Player Regulating Root Elongation inFrontiers in plant science · 2021Article
- The novel features of Plantago ovata seed mucilage accumulation, storage and release.Scientific reports · 2020Article
- 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
- Mapping and Dynamics of Regulatory DNA in MaturingFrontiers in plant science · 2019Article
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Authors and funding
6 authors at 2 institutions in 1 country.
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Abstract
The differentiation of the seed coat epidermal (SCE) cells in Arabidopsis thaliana leads to the production of a large amount of pectin-rich mucilage and a thick cellulosic secondary cell wall. The mechanisms by which cortical microtubules are involved in the formation of these pectinaceous and cellulosic cell walls are still largely unknown. Using a reverse genetic approach, we found that TONNEAU1 (TON1) recruiting motif 4 (TRM4) is implicated in cortical microtubule organization in SCE cells, and functions as a novel player in the establishment of mucilage structure. TRM4 is preferentially accumulated in the SCE cells at the stage of mucilage biosynthesis. The loss of TRM4 results in compact seed mucilage capsules, aberrant mucilage cellulosic structure, short cellulosic rays and disorganized cellulose microfibrils in mucilage. The defects could be rescued by transgene complementation of trm4 alleles. Probably, this is a consequence of a disrupted organization of cortical microtubules, observed using fluorescently tagged tubulin proteins in trm4 SCE cells. Furthermore, TRM4 proteins co-aligned with microtubules and interacted directly with CELLULOSE SYNTHASE 3 in two independent assays. Together, the results indicate that TRM4 is essential for microtubule array organization and therefore correct cellulose orientation in the SCE cells, as well as the establishment of the subsequent mucilage architecture.
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