Graphitic Carbon Nitride as a Nanostimulant in Basil Microgreens: Insights into Growth, Flavonoid Content, and Water Stress Response
Gesiely Rosany Costa Resende, Jhon Lennon Bezerra da Silva, Washington Nunes da Silva, Wilian Henrique Diniz Buso, Vania Sardinha dos Santos Diniz, Alex Fabiano Cortez Campos, Atailson Oliveira da Silva, Marcelo Henrique Sousa, Eliane Vieira Rosa
TL;DR
This study shows that graphitic carbon nitride can boost basil microgreen growth and flavonoid content, even under water stress.
Contribution
The paper introduces graphitic carbon nitride as a nanostimulant for enhancing plant stress tolerance and secondary metabolite production.
Findings
g-C3N4 increased leaf area by 34% under water stress at 100 mg L–1.
Flavonoid content rose by 49.98% and 42.87% at 100 and 200 mg L–1 under water stress.
g-C3N4 modulated physiological responses to enhance stress tolerance in basil microgreens.
Abstract
Graphitic carbon nitride (g-C3N4) exhibits strong adsorption and photocatalytic activity through reactive oxygen species generation, which also mediate plant stress responses. This study evaluated the effects of g-C3N4 on growth and secondary metabolites in basil (Ocimum basilicum L.) microgreens under water deficit. The nanomaterial was synthesized by calcination and characterized by X-ray diffraction (XRD), Fourier-transform infrared (FTIR), transmission electron microscopy (TEM), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), and dynamic light scattering-electrophoretic light scattering (DLS-ELS). Plants were grown under two hydration regimes (50 and 100% water replacement) and five g-C3N4 concentrations (0–250 mg L–1). Foliar applications were performed at 7 and 14 days after sowing, and plants were harvested at day 21. Under 50% water replacement, g-C3N4…
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Taxonomy
TopicsLight effects on plants · Nanoparticles: synthesis and applications · Advanced Photocatalysis Techniques