ArticleThe Plant cell2004
The Arabidopsis Rab GTPase RabA4b localizes to the tips of growing root hair cells.
Article in The Plant cell, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 118 papers.
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Who cites it
118 citing papers in PubMed, 242 citations in OpenAlex.
- Connecting the nucleus to the tip: A protein module linking RSL4 transcription with ROP signaling in root hair growth.The Plant cell · 2026Article
- Actin-depolymerizing factors 8 and 11 promote root hair elongation at high pH.Plant communications · 2024Article
- Emerging role of small GTPases and their interactome in plants to combat abiotic and biotic stress.Protoplasma · 2023Review
- Article
- Signaling network controlling ROP-mediated tip growth in Arabidopsis and beyond.Plant communications · 2023Review
- VPS45 is required for both diffuse and tip growth ofFrontiers in plant science · 2023Article
- Sterols and Sphingolipids as New Players in Cell Wall Building and Apical Growth ofPlants (Basel, Switzerland) · 2022Article
- Article
- SEC1A is a major Arabidopsis Sec1/Munc18 gene in vesicle trafficking during pollen tube tip growth.The Plant journal : for cell and molecular biology · 2022Article
- RAB GTPases and SNAREs at the trans-Golgi network in plants.Journal of plant research · 2022Review
- An Arabidopsis mutant deficient in phosphatidylinositol-4-phosphate kinases ß1 and ß2 displays altered auxin-related responses in roots.Scientific reports · 2022Article
- A phosphorus-limitation induced, functionally conserved DUF506 protein is a repressor of root hair elongation in plants.The New phytologist · 2022Article
- Spatial and temporal localization of SPIRRIG and WAVE/SCAR reveal roles for these proteins in actin-mediated root hair development.The Plant cell · 2021Article
- Rice Root Hair Phenotypes Imaged by Cryo-SEM.Bio-protocol · 2021Article
- Function of membrane domains in rho-of-plant signaling.Plant physiology · 2021Review
- A temperature-sensitive FERONIA mutant allele that alters root hair growth.Plant physiology · 2021Article
- The TOR-Auxin Connection Upstream of Root Hair Growth.Plants (Basel, Switzerland) · 2021Review
- Plant RABs: Role in Development and in Abiotic and Biotic Stress Responses.Current genomics · 2021Review
- The Tip-Localized Phosphatidylserine Established by Arabidopsis ALA3 Is Crucial for Rab GTPase-Mediated Vesicle Trafficking and Pollen Tube Growth.The Plant cell · 2020Article
- Article
58 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Spatial and temporal control of cell wall deposition plays a unique and critical role during growth and development in plants. To characterize membrane trafficking pathways involved in these processes, we have examined the function of a plant Rab GTPase, RabA4b, during polarized expansion in developing root hair cells. Whereas a small fraction of RabA4b cofractionated with Golgi membrane marker proteins, the majority of this protein labeled a unique membrane compartment that did not cofractionate with the previously characterized trans-Golgi network syntaxin proteins SYP41 and SYP51. An enhanced yellow fluorescent protein (EYFP)-RabA4b fusion protein specifically localizes to the tips of growing root hair cells in Arabidopsis thaliana. Tip-localized EYFP-RabA4b disappears in mature root hair cells that have stopped expanding, and polar localization of the EYFP-RabA4b is disrupted by latrunculin B treatment. Loss of tip localization of EYFP-RabA4b was correlated with inhibition of expansion; upon washout of the inhibitor, root hair expansion recovered only after tip localization of the EYFP-RabA4b compartments was reestablished. Furthermore, in mutants with defective root hair morphology, EYFP-RabA4b was improperly localized or was absent from the tips of root hair cells. We propose that RabA4b regulates membrane trafficking through a compartment involved in the polarized secretion of cell wall components in plant cells.
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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.