ArticlePlant physiology2008
The pollen receptor kinase LePRK2 mediates growth-promoting signals and positively regulates pollen germination and tube growth.
Article in Plant physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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Who cites it
40 citing papers in PubMed, 101 citations in OpenAlex.
- Artificial Mutations in the Nuclear Gene Encoding Mitochondrial RNA Polymerase Restore Pollen Fertility in Cytoplasmic Male Sterile Tomato.Plant biotechnology journal · 2026Article
- Identification of Auxin-Associated Genes in Wheat Through Comparative Transcriptome Analysis and Validation of the Candidate Receptor-like Kinase GenePlants (Basel, Switzerland) · 2025Article
- Functional redundancy of transcription factors SlNOR and SlNOR-like1 is required for pollen development in tomato.Horticulture research · 2025Article
- Flavonols improve tomato pollen thermotolerance during germination and tube elongation by maintaining reactive oxygen species homeostasis.The Plant cell · 2024Article
- PcLRR-RK3, an LRR receptor kinase is required for growth andMycology · 2024Article
- Optimization of In Vitro Germination, Viability Tests and Storage ofPlants (Basel, Switzerland) · 2023Article
- Pollen tube invasive growth is promoted by callose.Plant reproduction · 2023Article
- High confidence QTLs and key genes identified using Meta-QTL analysis for enhancing heat tolerance in chickpea (Frontiers in plant science · 2023Article
- Effects of Pollen Sources on Fruit Set and Fruit Characteristics of 'Fengtangli' Plum (International journal of molecular sciences · 2022Article
- The phospholipid flippase ALA3 regulates pollen tube growth and guidance in Arabidopsis.The Plant cell · 2022Article
- MAP3Kε1/2 Interact with MOB1A/1B and Play Important Roles in Control of Pollen Germination through Crosstalk with JA Signaling in Arabidopsis.International journal of molecular sciences · 2022Article
- Peptides/receptors signaling during plant fertilization.Frontiers in plant science · 2022Review
- Article
- Function of Small Peptides During Male-Female Crosstalk in Plants.Frontiers in plant science · 2021Review
- Kinase Partner Protein Plays a Key Role in Controlling the Speed and Shape of Pollen Tube Growth in Tomato.Plant physiology · 2020Article
- ARMADILLO REPEAT ONLY proteins confine Rho GTPase signalling to polar growth sites.Nature plants · 2020Article
- The Long Journey of Pollen Tube in the Pistil.International journal of molecular sciences · 2018Review
- The Extracellular Domain of Pollen Receptor Kinase 3 is structurally similar to the SERK family of co-receptors.Scientific reports · 2018Article
- Shining Light on the Function of NPH3/RPT2-Like Proteins in Phototropin Signaling.Plant physiology · 2018Review
- Genome-wide identification and characterization of non-specific lipid transfer proteins in cabbage.PeerJ · 2018Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In flowering plants, the process of pollen germination and tube growth is required for successful fertilization. A pollen receptor kinase from tomato (Solanum lycopersicum), LePRK2, has been implicated in signaling during pollen germination and tube growth as well as in mediating pollen (tube)-pistil communication. Here we show that reduced expression of LePRK2 affects four aspects of pollen germination and tube growth. First, the percentage of pollen that germinates is reduced, and the time window for competence to germinate is also shorter. Second, the pollen tube growth rate is reduced both in vitro and in the pistil. Third, tip-localized superoxide production by pollen tubes cannot be increased by exogenous calcium ions. Fourth, pollen tubes have defects in responses to style extract component (STIL), an extracellular growth-promoting signal from the pistil. Pollen tubes transiently overexpressing LePRK2-fluorescent protein fusions had slightly wider tips, whereas pollen tubes coexpressing LePRK2 and its cytoplasmic partner protein KPP (a Rop-GEF) had much wider tips. Together these results show that LePRK2 positively regulates pollen germination and tube growth and is involved in transducing responses to extracellular growth-promoting signals.
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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.