AI Article Synopsis
- Metal oxide nanoparticles, specifically copper oxide nanoparticles (CuONPs), were developed to combat root rot disease in cucumbers, showing promising results in laboratory, greenhouse, and field tests.
- Characterization techniques like SEM, XRD, and PL confirmed the nanoparticles' properties, with average sizes around 25.54 to 25.83 nm.
- Treatment with CuONPs not only reduced disease incidence and improved cucumber growth and yield but also enhanced the plants' defense mechanisms by increasing enzyme activity and gene expression compared to untreated controls.
Article Abstract
Metal oxide nanoparticles have recently garnered interest as potentially valuable substances for the management of plant diseases. Copper oxide nanoparticles (CuONPs) were chemically fabricated to control root rot disease in cucumbers. A scanning electron microscope (SEM), X-ray diffraction (XRD) and photoluminescence (PL) were employed to characterize the produced nanoparticles. Moreover, the direct antifungal activity of CuONPs against under laboratory, greenhouse, and field conditions were also evaluated. In addition, the induction of host-plant resistance by CuONPs was confirmed by the results of enzyme activities (catalase, peroxidase, and polyphenoloxidase) and gene expression ( and Finally, the effect of CuONPs on the growth and productivity characteristics of the treated cucumber plants was investigated. The average particle size from all the peaks was found to be around 25.54 and 25.83 nm for 0.30 and 0.35 CuO, respectively. Under laboratory conditions, the study found that CuONPs had a greater inhibitory effect on the growth of than the untreated control. CuONP treatment considerably reduced the disease incidence of the root rot pathogen in cucumber plants in both greenhouse and field environments. Defense enzyme activity and defense genes ( and ) transcription levels were higher in cucumber plants treated with CuONPs and fungicide than in the untreated control. SEM analysis revealed irregularities, changes, twisting, and plasmolysis in the mycelia, as well as spore shrinking and collapsing in treated with CuONPs, compared to the untreated control. The anatomical analysis revealed that cucumber plants treated with CuONPs had thicker cell walls, root cortex, and mesophyll tissue (MT) than untreated plants. Cucumber growth and yield characteristics were greatly improved after treatment with CuONPs and fungicide. To the best of our knowledge, employing CuONPs to treat cucumber rot root disease is a novel strategy that has not yet been reported.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9505343 | PMC |
| http://dx.doi.org/10.3390/jof8090911 | DOI Listing |
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