Open AccessInhibition of Fusarium oxysporum by AgNPs biosynthesised using Cinnamomum camphora fruit extract
Author(s) -
Huang Weidong,
Xu Minghui,
Duan Haiming,
Bi Yaling,
Yu Haibing
Publication year - 2019
Publication title -
iet nanobiotechnology
Language(s) - English
Resource type - Journals
ISSN - 1751-875X
DOI - 10.1049/iet-nbt.2018.5065
Subject(s) - cinnamomum camphora , fusarium oxysporum , silver nanoparticle , conidium , chemistry , silver nitrate , fusarium , germination , botany , antifungal , cinnamomum , horticulture , nuclear chemistry , food science , nanoparticle , chromatography , biology , materials science , nanotechnology , microbiology and biotechnology , medicine , alternative medicine , traditional chinese medicine , pathology , cassia
Cinnamomum camphora fruit extract was used to biosynthesise silver nanoparticles (AgNPs), and the optimised synthesis system was ascertained through solution colour change and ultraviolet–visible absorption spectra. It contained 20 ml of fruit extract, 4 mM Ag nitrate, and pH 7. AgNPs obtained based on such conditions were spherical and finely dispersed, with an average size of 20.3 nm. As‐synthesised AgNPs exhibited excellent antifungal effect against Fusarium oxysporum . At a dose of 400 μg/ml of AgNPs, the inhibition rate of colony growth reached 61.00% and an IC 50 value of 154.39 μg/ml. In addition, the conidia germination was totally inhibited at 100 μg/ml of AgNPs. Results of this study provide a new approach for biological control of plant pathogenic fungi, and it makes that possible for developing a brand new fungistat.