ArticleThe Plant cell2013
EXO70A1-mediated vesicle trafficking is critical for tracheary element development in Arabidopsis.
Article in The Plant cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.
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Who cites it
52 citing papers in PubMed, 97 citations in OpenAlex.
- Characterization of the OsEXO70 gene family and their response to salt stress in rice.BMC genomics · 2026Article
- NUT1-Exo70A1 Regulates Xylem Vessel Development and Influences Water Use Efficiency in Maize.Nature communications · 2026Article
- Article
- EXO70A1 governs both the timing and patterning of secondary cell wall deposition: evidence from anFrontiers in plant science · 2026Article
- From spore to gametophyte: Investigating morphological dynamics of hyaline cells and corresponding gene expression patterns in Sphagnum.BMC plant biology · 2025Article
- Tethering of cellulose synthase complex to the plasma membrane relies on the isoform of EXO70A1 in Arabidopsis.Scientific reports · 2024Article
- Monitoring Xylem Transport in Arabidopsis thaliana Seedlings Using Fluorescent Dyes.Methods in molecular biology (Clifton, N.J.) · 2024Article
- Secondary cell wall patterning-connecting the dots, pits and helices.Open biology · 2022Article
- Peptides/receptors signaling during plant fertilization.Frontiers in plant science · 2022Review
- Phosphoproteome analysis reveals an extensive phosphorylation of proteins associated with bast fiber growth in ramie.BMC plant biology · 2021Article
- Article
- Functional Specialization within the EXO70 Gene Family in Arabidopsis.International journal of molecular sciences · 2021Article
- Plasma membrane nano-organization specifies phosphoinositide effects on Rho-GTPases and actin dynamics in tobacco pollen tubes.The Plant cell · 2021Article
- The Exocyst Complex Subunit EXO70E1-V FromFrontiers in plant science · 2021Article
- EXO70D isoforms mediate selective autophagic degradation of type-A ARR proteins to regulate cytokinin sensitivity.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Exocyst mutants suppress pollen tube growth and cell wall structural defects of hydroxyproline O-arabinosyltransferase mutants.The Plant journal : for cell and molecular biology · 2020Article
- The presence of moderate salt can increase tolerance ofPlant signaling & behavior · 2020Article
- Article
- Regulation of Exocyst Function in Pollen Tube Growth by Phosphorylation of Exocyst Subunit EXO70C2.Frontiers in plant science · 2020Article
- The microtubule cytoskeleton acts as a sensor for stress response signaling in plants.Molecular biology reports · 2019Review
Corrections and comments
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Authors and funding
9 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Exocysts are highly conserved octameric complexes that play an essential role in the tethering of Golgi-derived vesicles to target membranes in eukaryotic organisms. Genes encoding the EXO70 subunit are highly duplicated in plants. Based on expression analyses, we proposed previously that individual EXO70 members may provide the exocyst with functional specificity to regulate cell type- or cargo-specific exocytosis, although direct evidence is not available. Here, we show that, as a gene expressed primarily during tracheary element (TE) development, EXO70A1 regulates vesicle trafficking in TE differentiation in Arabidopsis thaliana. Mutations of EXO70A1 led to aberrant xylem development, producing dwarfed and nearly sterile plants with very low fertility, reduced cell expansion, and decreased water potential and hydraulic transport. Grafting of a mutant shoot onto wild-type rootstock rescued most of these aboveground phenotypes, while grafting of a wild-type shoot to the mutant rootstock did not rescue the short root hair phenotype, consistent with the role of TEs in hydraulic transport from roots to shoots. Histological analyses revealed an altered pattern of secondary cell wall thickening and accumulation of large membrane-bound compartments specifically in developing TEs of the mutant. We thus propose that EXO70A1 functions in vesicle trafficking in TEs to regulate patterned secondary cell wall thickening.
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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.