Evaluation of Some Nanoparticles Against Sclerotium rolfsii the Cause of Root and Crown Rots in Common Beans

Abstract

Fungal diseases have a significant role in the low productivity of common bean crops. The use of fungicides is the most effective solution to control fungal pathogens, but excessive and indiscriminate fungicide use causes negative effects on the plant and the ecosystem. The quick advancement of nanotechnology seems to offer a novel solution to controlling phytopathogens. Different concentrations of three nanoparticles, Ag2O-NPs, CuO-NPs, and CaO-NPs were tested individually against Sclerotium rolfsii, the cause of root and crown rots. A significant effect was observed at 50 µg/mL. Our findings showed that the commercial fungicide Rizolex-T 50 WP and CaO-NPs did not perform as well as Ag2O-NPs and CuO-NPs in reducing disease incidence and severity caused by S. rolfsii. However, the three tested nanoparticles improved crop yield, defense enzymes (catalase, peroxidase, and polyphenol oxidase), and characteristics of plant development.

Role of biochemical changes of highly resistant and susceptible bean cultivars in the physiology of seedling damping-off and/or root rot disease resistance

“…In contrast, S. rolfsii and R. solani were the lowest frequencies, registering 5.89% and 11.77%, respectively. These findings could be interpreted in light of similar results in Egypt and worldwide reported by Abd El-Hai and Ali, Abeer (2018), Al-Juboory and Al-Bindawy (2018), Mukamuhirwa et al(2018 a and b), Paparu et al (2018), Koçak and Erper (2019), Khalifa et al (2021), Omar et al (2021), Rahkhodaei et al (2021), Ahanger et al (2022), Ali, Mai et al (2022), Elagamey et al (2022), Muhanna et al (2023), andTilahun et al(2023). Koch's postulates of the obtained 17 fungal isolates were fulfilled by the pathogenicity tests performed on the bean cv.…”

Effect of Green Biosynthesized Silver Nanoparticles Using Cleome amblyocarpa on Controlling Chickpea Wilt

“…Nanotechnology has appeared as a fascinating branch of science worldwide (Bayda et al, 2020 andEl Gamal et al, 2022 a and. which is expected to generate new applications in biotechnology, medicine, pharmacology, food, and agriculture (Sastry et al, 2010;Oves ElSharawy et al, 2 et al, 2013, Aziz et al, 2015Elagamey et al, 2022 andEl Gamal et al, 2022 a and.…”

“…Plant extracts can be used as both reducing and stabilizing agents to facilitate the synthesis of nanoparticles. In addition, the activity of antimicrobial effect has led researchers to search for the synthesis and application of AgNPs according to NPs smaller size and big surface area, silver nanoparticles are among the most vital and exhibit strong antimicrobial activity against a variety of pathogens such as fungi, bacteria, and viruses (Elagamey et al, 2022).…”