ArticleiScience2024
Heat-stress-induced ROS in maize silks cause late pollen tube growth arrest and sterility.
Article in iScience, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Reproductive thermotolerance: from flower development to seed initiation.The New phytologist · 2026Review
- Plant Flavonoids: Biosynthesis, Regulation, and Roles in Biotic and Abiotic Stresses.Plant, cell & environment · 2026Review
- Integrated physiological, hormonal, and transcriptomic analyses reveal pistil responses to pollen sources of varying compatibility in 'Fengtang' plum (Prunus salicina).BMC plant biology · 2026Article
- Comparing In Vivo and In Vitro Pollen Tube Attraction Assays for Arabidopsis and Maize.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Interspecific Hybridization Barrier BetweenPlants (Basel, Switzerland) · 2025Article
- Phosphoproteomic Analysis of Maize Seedlings Provides Insights into the Mechanisms of Heat-Stress Tolerance.International journal of molecular sciences · 2025Article
- Impact of High-Temperature Stress on Maize Seed Setting: Cellular and Molecular Insights of Thermotolerance.International journal of molecular sciences · 2025Review
- Flavonols improve tomato pollen thermotolerance during germination and tube elongation by maintaining reactive oxygen species homeostasis.The Plant cell · 2024Article
- Molecular mechanisms underlying the negative effects of transient heatwaves on crop fertility.Plant communications · 2024Review
- Elucidating the Role ofInternational journal of molecular sciences · 2024Article
- The molecular mechanism by which heat stress during the grain filling period inhibits maize grain filling and reduces yield.Frontiers in plant science · 2024Article
- Methodologies and Considerations in Evaluating Heat Stress Response and Thermotolerance of Pollen Grains.Physiologia plantarumReview
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The reproductive phase of plants is highly sensitive to ambient temperature stresses. To investigate sensitivity of female reproductive organs in grass crops during the pollination phase, we exposed the elongated stigma (silk) of maize to ambient environment at the silking stage. Moderate heat stress causes cell death of silk hair cells but did not affect early pollen tube growth inside the silk. Late pollen tube growth arrest was observed, leading to sterility. Heat stress causes elevated levels of reactive oxygen species (ROS) in silks, whose levels can be reduced by scavengers partly restoring pollen tube growth and fertility. A number of biological processes including hydrogen peroxide catabolic processes and bHLH transcription factor genes are downregulated by heat stress, while some NAC transcription factor genes are strongly upregulated. In conclusion, this study now provides a basis to select genes for engineering heat-stress-tolerant grass crops during the pollination phase.
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