ArticleJournal of integrative plant biology2025
OsPRK1/2/3-mediated reactive oxygen species signaling is required for pollen tube germination in rice.
Article in Journal of integrative plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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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
3 citing papers in PubMed.
- Reactive oxygen species in plants: spatiotemporal organization, redox signaling, and stress adaptation.Planta · 2026Review
- Reactive Oxygen and Nitrogen Species in Plants-2nd Edition.Antioxidants (Basel, Switzerland) · 2026Article
- OsPRK1/2/3-mediated reactive oxygen species signaling is required for pollen tube germination in rice.Journal of integrative plant biology · 2025Article
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Authors and funding
10 authors.
Funding
Abstract
Pollen hydration, germination, and tube growth are vital processes for the successful fertilization of flowering plants. These processes involve complex signaling pathways. Reactive oxygen species (ROS) generated in apoplast involves signaling for the cell wall expansion during tube growth, however molecular regulators are less known. We identified pollen-specific receptor-like kinase (OsPRK) family genes from rice (Oryza sativa), which have conserved leucine-rich repeat (LRR) and kinase domains. To understand the function of these genes, we produced single and triple mutations for OsPRK1, OsPRK2, and OsPRK3 using the clustered regularly interspaced palindromic repeats (CRISPR/Cas9) system. Among these mutants, triple knockout (KO) lines (osprk1/2/3) exhibited the male-sterile phenotype with normal vegetative growth and floret formation. Through cytological analysis, we confirmed that the reduced seed fertility was due to defects in pollen hydration and germination with low ROS accumulation. This defect of pollen germination was partially recovered by treatment with exogenous H
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