Publications by authors named "Said M Kamel"
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.
Late blight disease, caused by (Mont.) de Bary, is one of the most challenging diseases threatening tomato production and other Solanaceae crops. Resistance to late blight is found in certain wild species, but the mechanism behind the resistance is not fully understood.
View Article and Find Full Text PDFBackground: Silver oxide (Ag O) nanostructures were fabricated and their ability to induce antifungal activity against Macrophomina phaseolina, which causes charcoal rot disease in strawberries, was evaluated under laboratory, greenhouse and field conditions. A real-time quantitative polymerase chain reaction was used to monitor expression of defense-related genes, which is essential to evaluate the potential of the manufactured nanoparticles to promote strawberry resistance against charcoal rot. The effect of Ag O nanoparticles on growth characteristics in strawberry plants was also studied.
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- Rust, caused by a fungus, significantly impacts common bean crops, prompting a study of rust resistance in 10 bean genotypes over two growing seasons.
- Resistant genotypes exhibited lower disease severity and increased levels of biochemical compounds, such as phenols and antioxidant enzymes, compared to susceptible ones.
- The identified resistant gene SA14 showed potential for high grain yields and effective resistance mechanisms involving antioxidant responses and enhanced gene expression after infection.
Phytophthora infestans (Mont.) de Bary, a hemibiotrophic oomycete, has caused severe epidemics of late blight in tomato and potato crops around the world since the Irish Potato Famine in the 1840s. Breeding of late blight resistant cultivars is one of the most effective strategies to overcome this disruptive disease.
View Article and Find Full Text PDFTomato late blight caused by Phytophthora infestans (Mont.) de Bary, also known as the Irish famine pathogen, is one of the most destructive plant diseases. Wild relatives of tomato possess useful resistance genes against this disease, and could therefore be used in breeding to improve cultivated varieties.
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