ArticleScientific reports2020
Silicon reduces the iron uptake in rice and induces iron homeostasis related genes.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 37 citations in OpenAlex.
- Comparative Evaluation of the Effect of Foliar Nano-Se/Si Supply on the Yield and Nutritional Quality of Iceberg and Romaine Lettuce Grown in Hydroponics.Plants (Basel, Switzerland) · 2026Article
- Effectiveness of exogenous silicon and proline on mediating grapevine 'castellana negra' responses to salt stress.Scientific reports · 2025Article
- Mitigating excessive heat in Arabica coffee using nanosilicon and seaweed extract to enhance element homeostasis and photosynthetic recovery.BMC plant biology · 2024Article
- You can't always get as much iron as you want: how rice plants deal with excess of an essential nutrient.Frontiers in plant science · 2024Review
- Quantitative trait loci for grain mineral element accumulation in Vietnamese rice landraces.PloS one · 2024Article
- Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms.Frontiers in plant science · 2023Article
- Silicon in action: Between iron scarcity and excess copper.Frontiers in plant science · 2023Review
- Ethylene Response Factor109 Attunes Immunity, Photosynthesis, and Iron Homeostasis in Arabidopsis Leaves.Frontiers in plant science · 2022Article
- Priming With Silicon: A Review of a Promising Tool to Improve Micronutrient Deficiency Symptoms.Frontiers in plant science · 2022Review
- Beneficial Effect of Root or Foliar Silicon Applied to Cucumber Plants under Different Zinc Nutritional Statuses.Plants (Basel, Switzerland) · 2021Article
- Starve to Sustain-An Ancient Syrian Landrace of Sorghum as Tool for Phosphorous Bio-Economy?International journal of molecular sciences · 2021Article
- Accumulation of Silicon and Changes in Water Balance under Drought Stress inPlants (Basel, Switzerland) · 2021Article
- Interactions of Silicon With Essential and Beneficial Elements in Plants.Frontiers in plant science · 2021Review
- How Does Rice Defend Against Excess Iron?: Physiological and Molecular Mechanisms.Frontiers in plant science · 2020Review
- Root Silicon Addition Induces Fe Deficiency in Cucumber Plants, but Facilitates Their Recovery After Fe Resupply. A Comparison With Si Foliar Sprays.Frontiers in plant science · 2020Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Gramineous plants take up silicon (Si) that enhances the formation of exodermal Casparian bands (CBs) in the roots of rice (Oryza sativa L.). Furthermore, it is known that Si supply reduces the concentration of Fe in rice shoots. We hypothesized that the Si-enhanced CB formation in the exodermis reduces in the flux of Fe in the apoplast and the uptake of Fe loaded deoxymugineic acid. Thus, the effect of silicic acid supply at varied Fe concentrations and Fe forms was investigated in nutrient solution. The Fe concentrations in the shoot and apoplastic Fe concentrations in the root were determined and an Affymetrix GeneChip experiment was carried out together with qRT-PCR measurements for observation of transcriptomic reactions. Additionally, the Fe uptake of an overexpression mutant of OsABCG25 with an enhanced exodermal CB formation was investigated. The application of silicic acid reduced the Fe concentrations in shoot DM independently of the supplied Fe concentration and Fe form. As a reaction to the Fe shortage, the full cascade of Fe-homeostasis-related genes in the roots was upregulated. Silicic acid supply also decreased the apoplastic Fe concentrations in roots. In addition, an overexpression mutant of OsABCG25 with an enhanced CB formation showed a reduced uptake of Fe in excess Fe conditions. The results suggest that the Si-induced CB formation in the exodermis hampers the flux of Fe into the apoplast of the cortex and, thus, Fe uptake of rice grown in nutrient solution which is reflected in the upregulation of Fe homeostasis-related genes.
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