ArticleThe Plant cell2014
Overexpression of the tomato pollen receptor kinase LePRK1 rewires pollen tube growth to a blebbing mode.
Article in The Plant cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- A new player at the tip: KPZP steers pollen tube growth by reining in receptor trafficking.Plant physiology · 2026Article
- OsPRK1/2/3-mediated reactive oxygen species signaling is required for pollen tube germination in rice.Journal of integrative plant biology · 2025Article
- Transcriptome profiling of foxtail millet (Setaria italica) pollen and anther.BMC plant biology · 2024Article
- Tomato plant response to heat stress: a focus on candidate genes for yield-related traits.Frontiers in plant science · 2023Review
- Let's shape again: the concerted molecular action that builds the pollen tube.Plant reproduction · 2022Review
- Kinase Partner Protein Plays a Key Role in Controlling the Speed and Shape of Pollen Tube Growth in Tomato.Plant physiology · 2020Article
- Article
- NaCl treatment markedly enhanced pollen viability and pollen preservation time of euhalophyte Suaeda salsa via up regulation of pollen development-related genes.Journal of plant research · 2020Article
- Glycerol-3-phosphate acyltransferase 6 controls filamentous pathogen interactions and cell wall properties of the tomato and Nicotiana benthamiana leaf epidermis.The New phytologist · 2019Article
- The Balance between Actin-Bundling Factors Controls Actin Architecture in Pollen Tubes.iScience · 2019Article
- SMALL AUXIN UP RNA62/75 Are Required for the Translation of Transcripts Essential for Pollen Tube Growth.Plant physiology · 2018Article
- Multilayered signaling pathways for pollen tube growth and guidance.Plant reproduction · 2018Review
- Cell-cell communications and molecular mechanisms in plant sexual reproduction.Journal of plant research · 2018Review
- Interplay between Ions, the Cytoskeleton, and Cell Wall Properties during Tip Growth.Plant physiology · 2018Review
- Long-Term Growth of Moss in Microfluidic Devices Enables Subcellular Studies in Development.Plant physiology · 2016Article
- Importance of organellar proteins, protein translocation and vesicle transport routes for pollen development and function.Plant reproduction · 2016Review
- Arabidopsis FIM5 decorates apical actin filaments and regulates their organization in the pollen tube.Journal of experimental botany · 2016Article
- Auxin regulation of cell polarity in plants.Current opinion in plant biology · 2015Review
- Ion and lipid signaling in apical growth-a dynamic machinery responding to extracellular cues.Frontiers in plant science · 2015Article
- Organization and regulation of the actin cytoskeleton in the pollen tube.Frontiers in plant science · 2014Review
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The tubular growth of a pollen tube cell is crucial for the sexual reproduction of flowering plants. LePRK1 is a pollen-specific and plasma membrane-localized receptor-like kinase from tomato (Solanum lycopersicum). LePRK1 interacts with another receptor, LePRK2, and with KINASE PARTNER PROTEIN (KPP), a Rop guanine nucleotide exchange factor. Here, we show that pollen tubes overexpressing LePRK1 or a truncated LePRK1 lacking its extracellular domain (LePRK1ΔECD) have enlarged tips but also extend their leading edges by producing "blebs." Coexpression of LePRK1 and tomato PLIM2a, an actin bundling protein that interacts with KPP in a Ca(2+)-responsive manner, suppressed these LePRK1 overexpression phenotypes, whereas pollen tubes coexpressing KPP, LePRK1, and PLIM2a resumed the blebbing growth mode. We conclude that overexpression of LePRK1 or LePRK1ΔECD rewires pollen tube growth to a blebbing mode, through KPP- and PLIM2a-mediated bundling of actin filaments from tip plasma membranes. Arabidopsis thaliana pollen tubes expressing LePRK1ΔECD also grew by blebbing. Our results exposed a hidden capability of the pollen tube cell: upon overexpression of a single membrane-localized molecule, LePRK1 or LePRK1ΔECD, it can switch to an alternative mechanism for extension of the leading edge that is analogous to the blebbing growth mode reported for Dictyostelium and for Drosophila melanogaster stem cells.
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