In silico and in vitro investigation of the antifungal activity of trimetallic Cu-Zn-magnetic nanoparticles against Fusarium oxysporum with stimulation of the tomato plant's drought stress tolerance response.

Autor: Bouqellah NA; Taibah University, Science College, Biology Department, 42317- 8599, Al Madinah Al Munawwarah, Saudi Arabia. Electronic address: Nbouqellah@taibahu.edu.sa.
Jazyk: angličtina
Zdroj: Microbial pathogenesis [Microb Pathog] 2023 May; Vol. 178, pp. 106060. Date of Electronic Publication: 2023 Mar 06.
DOI: 10.1016/j.micpath.2023.106060
Abstrakt: Fusarium oxysporum is the fungus responsible for Fusarium wilt. Tomatoes and other plants acquire Fusarium wilt through their root systems. Occasionally, fungicides applied to the soil are used to combat the disease; however, some strains have developed resistance. Carboxymethyl cellulose (CMC) trimetallic magnetic zinc and copper nanoparticles CMC-Cu-Zn-FeMNPs are one of the most promising antifungal agents against a wide range of fungi. One of the most important aspects of using magnetic nanoparticles is their ability to target cells, which confirms the drug's potent fungicidal activity. Using a UV-spectrophotometer, the characterization of synthesized CMC-Cu-Zn-FeMNPs revealed four peaks at226,271, 321 and 335 nm, as well as spherical nanoparticles with a mean size of 5.905 nm and a surface potential of -61.7 mv. In this study, CMC-Cu-Zn-FeMNPs were used to inhibit the growth of F. oxysporum by interfering with the ergosterol production metabolic pathway. Molecular docking experiments demonstrated that the nanoparticles were able to bind to sterol 14-alpha demethylase responsible for inhibiting ergosterol biosynthesis. Real-time PCR analysis showed that the nanoparticles upregulated tomato plants and other assessed parameters under drought stress and downregulated the velvet complex and virulence factors of F. oxysporum on plants. The study results indicate that CMC-Cu-Zn-FeMNPs may be a promising and eco-friendly solution with low potential of accumulation and easy to collected alternative to conventional chemical pesticides that can have negative impacts on the environment and human health. Furthermore, it could provide a sustainable solution for managing Fusarium wilt disease, which can significantly reduce tomato yield and quality.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Nahla Alsayd Bouqellah reports administrative support was provided by Taibah University, Science College, Biology Department, 42317–8599, Al Madinah Al Munawwarah, Saudi Arabia. Nahla Alsayd Bouqellah reports a relationship with Taibah University, Science College, Biology Department, 42317–8599, Al Madinah Al Munawwarah, Saudi Arabia that includes: Assistant professor. No conflict of interest exists. The content and composition of this work are my responsibility.
(Copyright © 2023. Published by Elsevier Ltd.)
Databáze: MEDLINE
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