ArticleThe Plant cell2013
MAP18 regulates the direction of pollen tube growth in Arabidopsis by modulating F-actin organization.
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 47 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
47 citing papers in PubMed, 93 citations in OpenAlex.
- Review
- Cytoskeletal control of development and environmental adaptation in plants.Science China. Life sciences · 2026Review
- Visualizing Pollen and Pollen Tube Development Using Fluorescence Microscopy.Methods in molecular biology (Clifton, N.J.) · 2026Article
- The Microtubule End Binding Protein Mal3 Is Essential for the Dynamic Assembly of Microtubules duringInternational journal of molecular sciences · 2024Article
- Movement of Lipid Droplets in the Arabidopsis Pollen Tube Is Dependent on the Actomyosin System.Plants (Basel, Switzerland) · 2023Article
- Signaling network controlling ROP-mediated tip growth in Arabidopsis and beyond.Plant communications · 2023Review
- Let's shape again: the concerted molecular action that builds the pollen tube.Plant reproduction · 2022Review
- Quantitative cell biology of tip growth in moss.Plant molecular biology · 2021Review
- Hyperoside promotes pollen tube growth by regulating the depolymerization effect of actin-depolymerizing factor 1 on microfilaments in okra.Horticulture research · 2021Article
- A Novel Putative Microtubule-Associated Protein Is Involved in Arbuscule Development during Arbuscular Mycorrhiza Formation.Plant & cell physiology · 2021Article
- The quest for the central players governing pollen tube growth and guidance.Plant physiology · 2021Review
- Screening of Key Proteins Affecting Floral Initiation of Saffron Under Cold Stress Using iTRAQ-Based Proteomics.Frontiers in plant science · 2021Article
- TheThe Plant cell · 2020Article
- The Cytoskeleton and Its Role in Determining Cellulose Microfibril Angle in Secondary Cell Walls of Woody Tree Species.Plants (Basel, Switzerland) · 2020Review
- Histone Demethylases Coordinate the Antagonistic Interaction Between Abscisic Acid and Brassinosteroid Signaling inFrontiers in plant science · 2020Article
- Control of the Actin Cytoskeleton Within Apical and Subapical Regions of Pollen Tubes.Frontiers in cell and developmental biology · 2020Review
- Actin Cytoskeleton as Actor in Upstream and Downstream of Calcium Signaling in Plant Cells.International journal of molecular sciences · 2019Review
- Hydrogen Sulfide Disturbs Actin Polymerization viaPlant physiology · 2018Article
- Glycolysis regulates pollen tube polarity via Rho GTPase signaling.PLoS genetics · 2018Article
- Interplay between Ions, the Cytoskeleton, and Cell Wall Properties during Tip Growth.Plant physiology · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
For fertilization to occur in plants, the pollen tube must be guided to enter the ovule via the micropyle. Previous reports have implicated actin filaments, actin binding proteins, and the tip-focused calcium gradient as key contributors to polar growth of pollen tubes; however, the regulation of directional pollen tube growth is largely unknown. We reported previously that Arabidopsis thaliana MICROTUBULE-ASSOCIATED PROTEIN18 (MAP18) contributes to directional cell growth and cortical microtubule organization. The preferential expression of MAP18 in pollen and in pollen tubes suggests that MAP18 also may function in pollen tube growth. In this study, we demonstrate that MAP18 functions in pollen tubes by influencing actin organization, rather than microtubule assembly. In vitro biochemical results indicate that MAP18 exhibits Ca(2+)-dependent filamentous (F)-actin-severing activity. Abnormal expression of MAP18 in map18 and MAP18 OX plants was associated with disorganization of the actin cytoskeleton in the tube apex, resulting in aberrant pollen tube growth patterns and morphologies, inaccurate micropyle targeting, and fewer fertilization events. Experiments with MAP18 mutants created by site-directed mutagenesis suggest that F-actin-severing activity is essential to the effects of MAP18 on pollen tube growth direction. Our study demonstrates that in Arabidopsis, MAP18 guides the direction of pollen tube growth by modulating actin filaments.
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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.