ArticlePlant physiology2014
The apical actin fringe contributes to localized cell wall deposition and polarized growth in the lily pollen tube.
Article in Plant physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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Who cites it
39 citing papers in PubMed, 77 citations in OpenAlex.
- Low-temperature stress modulates pollen tube growth through temperature-dependent multi-level regulatory mechanisms in Camellia sinensis.Plant reproduction · 2026Article
- Inhibition of Sterol Biosynthesis Alters Tubulin Association with Detergent-Insoluble Membranes and Affects Microtubule Organization in Pollen Tubes ofPlants (Basel, Switzerland) · 2025Article
- A Plant-Derived Antifungal Agent, Poacic Acid, Inhibits Germination and Tube Growth of Lily Pollen.Plants (Basel, Switzerland) · 2025Article
- Effect of UV-B stress on olive (Olea europaea L.) pollen tubes: A study of callose plug deposition and male germ unit integrity.Protoplasma · 2025Article
- Establishing cell polarity in plants: the role of cytoskeletal structures and regulatory pathways.Frontiers in cell and developmental biology · 2025Review
- Endosidin 5 disruption of the Golgi apparatus and extracellular matrix secretion in the unicellular charophyte Penium margaritaceum.Annals of botany · 2023Article
- Sterols and Sphingolipids as New Players in Cell Wall Building and Apical Growth ofPlants (Basel, Switzerland) · 2022Article
- Transcriptome-wide analysis reveals core transcriptional regulators associated with culm development and variation inHeliyon · 2022Article
- Expression of Clementine Asp-Rich Proteins (CcASP-RICH) in Tobacco Plants Interferes with the Mechanism of Pollen Tube Growth.International journal of molecular sciences · 2022Article
- Let's shape again: the concerted molecular action that builds the pollen tube.Plant reproduction · 2022Review
- Dynamics of pectic homogalacturonan in cellular morphogenesis and adhesion, wall integrity sensing and plant development.Nature plants · 2022Review
- The legacy of kinesins in the pollen tube 30 years later.Cytoskeleton (Hoboken, N.J.) · 2022Review
- Protein Analysis of Pollen Tubes after the Treatments of Membrane Trafficking Inhibitors Gains Insights on Molecular Mechanism Underlying Pollen Tube Polar Growth.The protein journal · 2021Article
- Quantitative Structural Organization of Bulk Apical Membrane Traffic in Pollen Tubes.Plant physiology · 2020Article
- Exocytosis and endocytosis: coordinating and fine-tuning the polar tip growth domain in pollen tubes.Journal of experimental botany · 2020Review
- Control of the Actin Cytoskeleton Within Apical and Subapical Regions of Pollen Tubes.Frontiers in cell and developmental biology · 2020Review
- A chemical screen identifies two novel small compounds that alter Arabidopsis thaliana pollen tube growth.BMC plant biology · 2019Article
- Actin Bundles in The Pollen Tube.International journal of molecular sciences · 2018Review
- Arabidopsis thaliana plants lacking the ARP2/3 complex show defects in cell wall assembly and auxin distribution.Annals of botany · 2018Article
- Rice Morphology Determinant-Mediated Actin Filament Organization Contributes to Pollen Tube Growth.Plant physiology · 2018Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In lily (Lilium formosanum) pollen tubes, pectin, a major component of the cell wall, is delivered through regulated exocytosis. The targeted transport and secretion of the pectin-containing vesicles may be controlled by the cortical actin fringe at the pollen tube apex. Here, we address the role of the actin fringe using three different inhibitors of growth: brefeldin A, latrunculin B, and potassium cyanide. Brefeldin A blocks membrane trafficking and inhibits exocytosis in pollen tubes; it also leads to the degradation of the actin fringe and the formation of an aggregate of filamentous actin at the base of the clear zone. Latrunculin B, which depolymerizes filamentous actin, markedly slows growth but allows focused pectin deposition to continue. Of note, the locus of deposition shifts frequently and correlates with changes in the direction of growth. Finally, potassium cyanide, an electron transport chain inhibitor, briefly stops growth while causing the actin fringe to completely disappear. Pectin deposition continues but lacks focus, instead being delivered in a wide arc across the pollen tube tip. These data support a model in which the actin fringe contributes to the focused secretion of pectin to the apical cell wall and, thus, to the polarized growth of the pollen tube.
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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.