ArticleThe Plant cell2008
Type B phosphatidylinositol-4-phosphate 5-kinases mediate Arabidopsis and Nicotiana tabacum pollen tube growth by regulating apical pectin secretion.
Article in The Plant cell, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
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Who cites it
74 citing papers in PubMed, 198 citations in OpenAlex.
- The class VIII myosin ATM2 stabilizes actin-plasma membrane contacts in tobacco pollen tubes by locally promoting PtdIns(4,5)PNature plants · 2026Article
- Reciprocal regulation between AtFH5-labeled secretory vesicles and PI(4,5)PJournal of integrative plant biology · 2025Article
- A high-density linkage map and fine QTL mapping of architecture, phenology, and yield-related traits in faba bean (Frontiers in plant science · 2025Article
- Heterogeneity in Mechanical Properties of Plant Cell Walls.Plants (Basel, Switzerland) · 2024Review
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- OsPIPK-FAB, A Negative Regulator in Rice Immunity Unveiled by OsMBL1 Inhibition.Rice (New York, N.Y.) · 2024Article
- The Silencing ofInternational journal of molecular sciences · 2024Article
- Identification and Analysis of the Expression of theInternational journal of molecular sciences · 2023Article
- Phosphoinositides in plant-pathogen interaction: trends and perspectives.Stress biology · 2023Review
- A phosphoinositide hub connects CLE peptide signaling and polar auxin efflux regulation.Nature communications · 2023Article
- The trans-Golgi-localized protein BICAT3 regulates manganese allocation and matrix polysaccharide biosynthesis.Plant physiology · 2022Article
- OsSNDP3 Functions for the Polar Tip Growth in Rice Pollen Together with OsSNDP2, a Paralog of OsSNDP3.Rice (New York, N.Y.) · 2022Article
- Let's shape again: the concerted molecular action that builds the pollen tube.Plant reproduction · 2022Review
- Dynamic apico-basal enrichment of the F-actin during cytokinesis in Arabidopsis cells embedded in their tissues.Quantitative plant biology · 2022Article
- Genome-wide identification of PIP5K in wheat and its relationship with anther male sterility induced by high temperature.BMC plant biology · 2021Article
- Plasma membrane phospholipid signature recruits the plant exocyst complex via the EXO70A1 subunit.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Plasma membrane nano-organization specifies phosphoinositide effects on Rho-GTPases and actin dynamics in tobacco pollen tubes.The Plant cell · 2021Article
- Inducible depletion of PI(4,5)PNature plants · 2021Article
- Function of membrane domains in rho-of-plant signaling.Plant physiology · 2021Review
- Lipid kinases PIP5K7 and PIP5K9 are required for polyamine-triggered KThe Plant journal : for cell and molecular biology · 2020Article
14 more citing papers are in PubMed but not listed here.
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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Phosphatidylinositol-4,5-bisphosphate [PtdIns(4,5)P(2)] occurs in the apical plasma membrane of growing pollen tubes. Because enzymes responsible for PtdIns(4,5)P(2) production at that location are uncharacterized, functions of PtdIns(4,5)P(2) in pollen tube tip growth are unresolved. Two candidate genes encoding pollen-expressed Arabidopsis thaliana phosphatidylinositol-4-phosphate 5-kinases (PI4P 5-kinases) of Arabidopsis subfamily B were identified (PIP5K4 and PIP5K5), and their recombinant proteins were characterized as being PI4P 5-kinases. Pollen of T-DNA insertion lines deficient in both PIP5K4 and PIP5K5 exhibited reduced pollen germination and defects in pollen tube elongation. Fluorescence-tagged PIP5K4 and PIP5K5 localized to an apical plasma membrane microdomain in Arabidopsis and tobacco (Nicotiana tabacum) pollen tubes, and overexpression of either PIP5K4 or PIP5K5 triggered multiple tip branching events. Further studies using the tobacco system revealed that overexpression caused massive apical pectin deposition accompanied by plasma membrane invaginations. By contrast, callose deposition and cytoskeletal structures were unaltered in the overexpressors. Morphological effects depended on PtdIns(4,5)P(2) production, as an inactive enzyme variant did not produce any effects. The data indicate that excessive PtdIns(4,5)P(2) production by type B PI4P 5-kinases disturbs the balance of membrane trafficking and apical pectin deposition. Polar tip growth of pollen tubes may thus be modulated by PtdIns(4,5)P(2) via regulatory effects on membrane trafficking and/or apical pectin deposition.
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