ArticleThe Plant cell2024
Arabinosylation of cell wall extensin is required for the directional response to salinity in roots.
Article in The Plant cell, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 18 citations in OpenAlex.
- The OsGSK1-OsBZR3-OsJAZ4 module integrates nitrate signaling with brassinosteroid and jasmonic acid crosstalk to drive cell wall remodeling for salt recovery in rice.Plant communications · 2026Article
- Going out with a bang: CESA7 and microtubules are required for patterning of secondary cell walls in explosive fruit.The Plant cell · 2026Article
- Rhamnogalacturonan-II Dimerisation Reinforces Salt Resistance in Sugar Beet.Plant, cell & environment · 2026Article
- Plant cell wall remodeling and peptide signaling under abiotic and biotic stress.Plant communications · 2026Review
- Ionic regulation of thylakoid membrane architecture: Mg2+-driven destacking and restacking visualized.Plant physiology · 2026Article
- Charge reversal at the Lhcb2 N-terminus impairs phosphorylation and PSI-LHCII complex formation.Photosynthesis research · 2026Article
- Advances in CrRLK1L function in plant cell wall signaling during interaction with the environment and development.Stress biology · 2025Review
- Genome-Wide Identification and Salinity Response Analysis of the Germin-like Protein (Plants (Basel, Switzerland) · 2025Article
- Article
- Abscisic acid signaling gates salt-induced responses of plant roots.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Imaging reveals how plants cope with salt.Nature · 2025Article
- Effect of Insecticides Imidacloprid and Alpha-Cypermethrin on the Development of Pea (Plants (Basel, Switzerland) · 2024Article
- Article
- Exploring Genomic Regions Associated with Fruit Traits in Pepper: Insights from Multiple GWAS Models.International journal of molecular sciences · 2024Article
Corrections and comments
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Authors and funding
23 authors at 7 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Soil salinity is a major contributor to crop yield losses. To improve our understanding of root responses to salinity, we developed and exploited a real-time salt-induced tilting assay. This assay follows root growth upon both gravitropic and salt challenges, revealing that root bending upon tilting is modulated by Na+ ions, but not by osmotic stress. Next, we measured this salt-specific response in 345 natural Arabidopsis (Arabidopsis thaliana) accessions and discovered a genetic locus, encoding the cell wall-modifying enzyme EXTENSIN ARABINOSE DEFICIENT TRANSFERASE (ExAD) that is associated with root bending in the presence of NaCl (hereafter salt). Extensins are a class of structural cell wall glycoproteins known as hydroxyproline (Hyp)-rich glycoproteins, which are posttranslationally modified by O-glycosylation, mostly involving Hyp-arabinosylation. We show that salt-induced ExAD-dependent Hyp-arabinosylation influences root bending responses and cell wall thickness. Roots of exad1 mutant seedlings, which lack Hyp-arabinosylation of extensin, displayed increased thickness of root epidermal cell walls and greater cell wall porosity. They also showed altered gravitropic root bending in salt conditions and a reduced salt-avoidance response. Our results suggest that extensin modification via Hyp-arabinosylation is a unique salt-specific cellular process required for the directional response of roots exposed to salinity.
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