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Fungicidal synergistic effect of biogenically synthesized zinc oxide and copper oxide nanoparticles against causing citrus black rot disease. | LitMetric

AI Article Synopsis

  • * A study investigated the antifungal properties of green synthesized zinc oxide (ZnO) and copper oxide (CuO) nanoparticles (NPs), created using lemon peel extract, which displayed effective growth inhibition against the disease-causing fungus.
  • * The synthesized nanoparticles were characterized and found to demonstrate substantial antifungal activity, with optimal concentrations achieving complete fungal growth inhibition, suggesting their potential as eco-friendly alternatives to conventional fungicides for managing citrus black rot.

Article Abstract

Citrus black rot disease being caused by is a major disease of citrus plants with 30-35% economic loss annually. Fungicides had not been effective in the control of this disease during last few decades. In the present study, antifungal role of green synthesized zinc oxide (ZnO) and copper oxide (CuO) nanoparticles (NPs) were studied against . was isolated from disease fruits samples and was identified by staining with lacto phenol cotton blue. Furthermore, CuO and ZnO NPs were synthesized by utilizing the lemon peels extract as the reducing and capping agent. Nanoparticles were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. From the XRD data, the calculated size of CuO NPs was to be 18 nm and ZnO NPs was16.8 nm using Scherrer equation. The SEM analyses revealed the surface morphology of all the metal oxide NPs synthesized were rounded, elongated and or spherical in the shape. The zone of inhibition was observed to be 50 ± 0.5 mm by CuO NPs, followed by 51.5 ± 0.5 mm by ZnO NPs and maximum zone of antifungal inhibition was observed to be 53 ± 0.6 mm by mix metal oxide NPs. The results of minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of the synthesized nanoparticles showed that at the certain concentrations (80 mg ml), these NPs were capable of inhibiting the fungal growth, whereas above that specified concentrations (100 mg ml), NPs completely inhibited the fungal growth. Based on these findings, the green synthesized NPs can be used as alternative to fungicide in order to control the citrus black rot disease.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8716905PMC
http://dx.doi.org/10.1016/j.sjbs.2021.08.067DOI Listing

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