ArticleAnnals of botany2019
Absorption of foliar-applied Zn in sunflower (Helianthus annuus): importance of the cuticle, stomata and trichomes.
Article in Annals of botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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Who cites it
34 citing papers in PubMed.
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- Stomata as the Main Pathway for the Penetration of Atmospheric Particulate Matter Pb into Wheat Leaves.Toxics · 2025Article
- Combined Effects of Heavy Metal and Simulated Herbivory on Leaf Trichome Density in Sunflowers.Plants (Basel, Switzerland) · 2024Article
- Towards realizing nano-enabled precision delivery in plants.Nature nanotechnology · 2024Review
- In Vitro Fossilization for High Spatial Resolution Quantification of Elements in Plant-Tissue Using LA-ICP-TOFMS.Analytical chemistry · 2024Article
- Impacts of simulated atmospheric cadmium deposition on the physiological response and cadmium accumulation of Sedum plumbizincicola.Environmental science and pollution research international · 2024Article
- Physiological and biochemical effects of biochar nanoparticles on spinach exposed to salinity and drought stresses.Environmental science and pollution research international · 2024Article
- Application of ZnO NPs, SiOPlants (Basel, Switzerland) · 2024Article
- Response ofFrontiers in plant science · 2024Article
- Tomato and Pepper Leaf Parts Contribute Differently to the Absorption of Foliar-Applied Potassium Dihydrogen Phosphate.Plants (Basel, Switzerland) · 2023Article
- Agronomic Investigation of Spray Dispersion of Metal-Based Nanoparticles on Sunflowers in Real-World Environments.Plants (Basel, Switzerland) · 2023Article
- Anatomical and physiological responses ofPeerJ · 2023Article
- Foliar P Application Cannot Fully Restore Photosynthetic Capacity, P Nutrient Status, and Growth of P Deficient Maize (Plants (Basel, Switzerland) · 2022Article
- Interaction of the Nanoparticles and Plants in Selective Growth Stages-Usual Effects and Resulting Impact on Usage Perspectives.Plants (Basel, Switzerland) · 2022Review
- Foliar-applied manganese and phosphorus in deficient barley: Linking absorption pathways and leaf nutrient status.Physiologia plantarum · 2022Article
- Nanobionics in Crop Production: An Emerging Approach to Modulate Plant Functionalities.Plants (Basel, Switzerland) · 2022Review
- Effects of Foliar Application of ZnO Nanoparticles on Lentil Production, Stress Level and Nutritional Seed Quality under Field Conditions.Nanomaterials (Basel, Switzerland) · 2022Article
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Authors and funding
11 authors.
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Abstract
Background and Aims: The pathways whereby foliar-applied nutrients move across the leaf surface remain unclear. The aim of the present study was to examine the pathways by which foliar-applied Zn moves across the sunflower (Helianthus annuus) leaf surface, considering the potential importance of the cuticle, stomata and trichomes. Methods: Using synchrotron-based X-ray florescence microscopy and nanoscale secondary ion mass spectrometry (NanoSIMS), the absorption of foliar-applied ZnSO4 and nano-ZnO were studied in sunflower. The speciation of Zn was also examined using synchrotron-based X-ray absorption spectroscopy. Key Results: Non-glandular trichomes (NGTs) were particularly important for foliar Zn absorption, with Zn preferentially accumulating within trichomes in ≤15 min. The cuticle was also found to have a role, with Zn appearing to move across the cuticle before accumulating in the walls of the epidermal cells. After 6 h, the total Zn that accumulated in the NGTs was approx. 1.9 times higher than in the cuticular tissues. No marked accumulation of Zn was found within the stomatal cavity, probably indicating a limited contribution of the stomatal pathway. Once absorbed, the Zn accumulated in the walls of the epidermal and the vascular cells, and trichome bases of both leaf sides, with the bundle sheath extensions that connected to the trichomes seemingly facilitating this translocation. Finally, the absorption of nano-ZnO was substantially lower than for ZnSO4, with Zn probably moving across the leaf surface as soluble Zn rather than nanoparticles. Conclusions: In sunflower, both the trichomes and cuticle appear to be important for foliar Zn absorption.
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