ArticlePlant cell reports2016
Overexpression of phytosulfokine-α induces male sterility and cell growth by regulating cell wall development in Arabidopsis.
Article in Plant cell reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Comparative Transcriptomic Analysis Provides Insights into PSK-α-Mediated Regulation of Diosgenin Biosynthesis inMolecules (Basel, Switzerland) · 2026Article
- Peptides and Reactive Oxygen Species Regulate Root Development.International journal of molecular sciences · 2025Review
- Genome-Wide Identification and Expression Analysis of Phytosulfokine Peptide Hormone Genes inInternational journal of molecular sciences · 2025Article
- Phytosulfokine downregulates defense-related WRKY transcription factors and attenuates pathogen-associated molecular pattern-triggered immunity.The Plant journal : for cell and molecular biology · 2024Article
- EnhancingPlants (Basel, Switzerland) · 2024Article
- Sulfated peptides and their receptors: Key regulators of plant development and stress adaptation.Plant communications · 2024Review
- Phytosulfokine alpha enhances regeneration of transformed and untransformed protoplasts ofFrontiers in plant science · 2024Article
- Sulfated peptides: key players in plant development, growth, and stress responses.Frontiers in plant science · 2024Review
- Phytosulfokine peptides, their receptors, and functions.Frontiers in plant science · 2023Review
- A novel type of phytosulfokine, PSK-ε, positively regulates root elongation and formation of lateral roots and root nodules inPlant signaling & behavior · 2022Article
- MicroRNA858a, its encoded peptide, and phytosulfokine regulate Arabidopsis growth and development.Plant physiology · 2022Article
- miR164-targeted TaPSK5 encodes a phytosulfokine precursor that regulates root growth and yield traits in common wheat (Triticum aestivum L.).Plant molecular biology · 2020Article
- Composition of the Reconstituted Cell Wall in Protoplast-Derived Cells of Daucus is Affected by Phytosulfokine (PSK).International journal of molecular sciences · 2019Article
- Expression of a novel PSK-encoding gene from soybean improves seed growth and yield in transgenic plants.Planta · 2019Article
- Overexpression of PSK-γ in Arabidopsis promotes growth without influencing pattern-triggered immunity.Plant signaling & behavior · 2019Article
- An auxin-induced β-type endo-1,4-β-glucanase in poplar is involved in cell expansion and lateral root formation.Planta · 2018Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageOver-production of functional PSK-α in Arabidopsis caused increases in both plant cell growth and biomass and induced male sterility by regulating cell wall development. Phytosulfokine-α (PSK-α) is a novel disulfated pentapeptide hormone that is involved in promoting plant cell growth. Although a role for PSK-α in stimulating protoplast expansion has been suggested, how PSK-α regulates cell growth in planta remains poorly understood. In this study, we found that overexpression of the normal PSK-α precursor gene AtPSK4, which resulted in high levels of PSK-α, caused longer roots and larger leaves with enlarged cells. As expected, these changes were not observed in transgenic plants overexpressing mutated AtPSK4, which generated unsulfated PSK-α. These findings confirmed the role of PSK-α in promoting plant cell growth. Furthermore, we found that overexpressing AtPSK4, but not mutated AtPSK4, induced a phenotype of male sterility that resulted from the failure of fibrous cell wall development in the endothecium. In addition, overexpressing AtPSK4 enhanced expression of a number of genes encoding expansins, which are involved in cell wall loosening. Accordingly, in addition to its role in cell growth, we propose a novel function for PSK-α signaling in the modulation of plant male sterility via regulation of cell wall development.
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