ArticleThe Plant cell1996
Localized Apical Increases of Cytosolic Free Calcium Control Pollen Tube Orientation.
Article in The Plant cell, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 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
84 citing papers in PubMed.
- OsCML17 a pollen-expressed calmodulin-like protein regulates pollen germination and tube growth in rice (Oryza sativa).Plant cell reports · 2026Article
- An Automated Lab-On-A-Chip Approach for Pollen Tube Growth Manipulation in a Controlled Chemical Environment.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Article
- Calcium imaging: a technique to monitor calcium dynamics in biological systems.Physiology and molecular biology of plants : an international journal of functional plant biology · 2023Review
- The Light-Controlled Release of 2-fluoro-l-fucose, an Inhibitor of the Root Cell Elongation, from a nitrobenzyl-caged Derivative.International journal of molecular sciences · 2023Article
- Transcriptional regulations of pollen tube reception are associated with the fertility of the ginger speciesFrontiers in plant science · 2023Article
- Calmodulin Domain Protein Kinase PiCDPK1 Regulates Pollen Tube Growth Polarity through Interaction with RhoGDI.Plants (Basel, Switzerland) · 2022Article
- P2K1 Receptor, Heterotrimeric Gα Protein and CNGC2/4 Are Involved in Extracellular ATP-Promoted Ion Influx in the Pollen ofPlants (Basel, Switzerland) · 2021Article
- The quest for the central players governing pollen tube growth and guidance.Plant physiology · 2021Review
- The Role of Calcium/Calcium-Dependent Protein Kinases Signal Pathway in Pollen Tube Growth.Frontiers in plant science · 2021Review
- Signalling Pinpointed to the Tip: The Complex Regulatory Network That Allows Pollen Tube Growth.Plants (Basel, Switzerland) · 2020Review
- Ethylene-independent signaling by the ethylene precursor ACC in Arabidopsis ovular pollen tube attraction.Nature communications · 2020Article
- Fertilization in flowering plants: an odyssey of sperm cell delivery.Plant molecular biology · 2020Review
- Calcium: A Critical Factor in Pollen Germination and Tube Elongation.International journal of molecular sciences · 2019Review
- Extracellular ATP promoted pollen germination and tube growth of Nicotiana tabacum through promoting KPlant reproduction · 2018Article
- Calcium dynamics in tomato pollen tubes using the Yellow Cameleon 3.6 sensor.Plant reproduction · 2018Article
- Simultaneous imaging and functional studies reveal a tight correlation between calcium and actin networks.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Constituent analysis and proteomic evaluation of ovular secretions inPlant signaling & behavior · 2018Article
- Interplay between Ions, the Cytoskeleton, and Cell Wall Properties during Tip Growth.Plant physiology · 2018Review
- Cyclic nucleotide-gated channel 18 functions as an essential CaPlant signaling & behavior · 2017Article
24 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
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To reach the ovule, pollen tubes must undergo many changes in growth direction. We have shown in previous work that elevation of cytosolic free calcium ([Ca2+]c) can manipulate orientation in growing pollen tubes, but our results suggested that [Ca2+]c changes either in the tip or in more distal regions might regulate the critical orienting mechanism. To identify the spatial location of the orienting motor, we combined the techniques of ion imaging with confocal microscopy and localized photoactivation of loaded caged Ca2+ (nitr-5) and diazo-2 (a caged Ca2+ chelator) to manipulate [Ca2+]c in different pollen tube domains. We found that increasing [Ca2+]c on one side of the pollen tube apex induced reorientation of the growth axis toward that side. Similarly, a decrease in [Ca2+]c promoted bending toward the opposite side. These effects could be mimicked by imposing localized external gradients of an ionophore (A23187) or a Ca2+ channel blocker (GdCl3); the pollen tubes bend toward the highest concentration of A23187 and away from GdCl3. Manipulation of [Ca2+]c in regions farther back from the apical zone also induced changes in growth direction, but the new orientation was at random. We observed communication of these distal events to the tip through a slow-moving [Ca2+]c wave. These data show that localized changes of [Ca2+]c in the tip, which could result from asymmetric channel activity, control the direction of pollen tube growth.
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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.