Novel fabrication of SiO₂/Ag nanocomposite by gamma irradiated Fusarium oxysporum to combat Ralstonia solanacearum.

ABSTRACT: The bacterial wilt is a global destructive plant disease that initiated by the phytopathogenic Ralstonia solanacearum. This study display a novel biofabrication of silica/silver nanocomposite using Fusarium oxysporum-fermented rice husk (RH) under solid state fermentation (SSF). The biofabricated nanocomposite was characterized by XRD, UV-Vis. spectroscopy, DLS, SEM, EDX elemental mapping, and TEM analyses as well as investigated for anti-R. solanacearum activity. Response surface methodology was also processed for optimizing the biofabrication process and improving the anti-bacterial activity of the fabricated nanocomposite. Maximum suppression zone of 29.5 mm against R. solanacearum was reached at optimum RH content of 6.0 g, AgNO₃ concentration of 2.50 mM, reaction pH of 6.3,

SUBMITTER: Zaki AG 

PROVIDER: S-EPMC8885861 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature