Zinc oxide nanoparticles cooperate with the phyllosphere to promote grain yield and nutritional quality of rice under heatwave stress

Proceedings of the National Academy of Sciences, Год журнала: 2024, Номер 121(46)

Опубликована: Ноя. 4, 2024

To address rising global food demand, the development of sustainable technologies to increase productivity is urgently needed. This study revealed that foliar application zinc oxide nanoparticles (ZnO NPs; 30 80 nm, 0.67 mg/d per plant, 6 d) rice leaves under heatwave (HW) stress increased grain yield and nutritional quality. Compared with HW control, HWs+ZnO group presented increases in yield, protein content, amino acid content 22.1%, 11.8%, 77.5%, respectively. Nanoscale ZnO aggregated on leaf surface interacted molecules. at ambient temperature, treatment dissolution NPs by 25.9% facilitated their translocation mesophyll cells. The Zn existed as both ionic particulate ZnO. conditions nutrient levels (Zn, Mn, Cu, Fe, Mg) 15.8 416.9%, chlorophyll 22.2 24.8%, Rubisco enzyme activity 21.2%, antioxidant 26.7 31.2%. Transcriptomic analyses reversed HW-induced transcriptomic dysregulation, thereby enhancing photosynthesis 74.4%. Additionally, diversity, stability, enrichment beneficial microbial taxa protected phyllosphere community from damage. work elucidates how interact phyllosphere, highlighting potential promote agriculture, especially extreme climate events (e.g., HWs).

Язык: Английский

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Multiple Pathways Revealing the CeO₂ Nanoparticle-Biostimulant-Based “Stress Training” Strategy for Enhanced Medicago sativa L. Antiviral Capability

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

"Nanophytovirology" is a potential management approach to combat plant viral diseases. Herein, the impact of foliar application CeO2 nanoparticles (CeO2-NPs) on growth, cell ultrastructure, and physiology alfalfa mosaic virus (AMV)-infected seedlings was explored at different concentrations strategies. In solar greenhouse, 20 mL CeO2-NP suspensions 50, 100, 200, 500 mg/L sprayed onto surface every other day for 9 days. As result, total volume applied per pot 100 mL. It showed that beneficial effects CeO2-NPs infected were dependent concentration period. Compared control, with before AMV infection (CeO2-NPs-BVI) greatest suppression efficacy; significantly reduced disease indices by 58.87%; improved yield, nutritional quality; increased height, dry biomass, crude protein, fat contents relative feeding value 15.17, 37.12, 18.77, 71.19, 10.09%, respectively. Moreover, CeO2-NPs-BVI maintained chloroplast quantity structure leaf cells enhanced chlorophyll content photosynthesis rate leaves 36.14 40.13%, respectively, as compared control. Mechanistically, physiology, transcriptomic analyses revealed (1) effectively mitigated AMV-induced damage, subsequently enhancing carbon fixation in photosynthetic organisms, providing sufficient energy antiviral activities maintaining growth development; (2) AMV's ability bind host receptors evade immune recognition, activating boosting systemic immunity down-regulating ABA ETH levels upregulating SA, IAA, BR levels; (3) activated antioxidative systems eliminate excess reactive oxygen species. These findings provide significant insight into highly efficient agent.

Язык: Английский

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Effect of Nanofertilizers on Plant’s Stress-Tolerance

Опубликована: Янв. 1, 2025

Язык: Английский

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Heatwave Enhance the Adaptability of Chlorella pyrenoidosa to Zinc Oxide Nanoparticles: Regulation of Interfacial Interactions and Metabolic Mechanisms

Water Research, Год журнала: 2025, Номер 279, С. 123466 - 123466

Опубликована: Март 9, 2025

Язык: Английский

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Chemodynamic Metal-Phenolic Nanopesticide Performs In Situ Hydrogen Peroxide Self-Supply against Plant Pathogens for Food Sustainability

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Язык: Английский

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Plant nanobiotechnology: a new strategy to enhance crop photosynthesis

Environmental Science Nano, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Primary mechanism through which nanomaterials enhance plant photosynthesis.

Язык: Английский

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