Author/Authors :
Abkhoo Javad نويسنده Institute of Plant Biotechnology, Center of Agricultural Biotechnology University of Zabol, Zabol, IR Iran , Panjehkeh Naser نويسنده Department of Plant Protection, Faculty of Agriculture,
University of Zabol, Zabol, IR Iran
Abstract :
Background Silver nanoparticles (AgNPs) are between 1 nm and 100
nm in size. Objectives Different concentrations of AgNPs were tested in
this research to examine antifungal activity on Fusarium
oxysporum. Methods Antifungal activity of AgNPs on basis of
colony formation was evaluated by in vitro Petri dish measurement.
Results Different concentrations of AgNPs inhibit colony formation of
F. oxysporum at different levels. As concentration of
AgNPs was increased, there was a decrease in colony formation. Silver
nanoparticles at the highest concentration (5000 ppm) did not fully
inhibit F. oxysporum colony formation. Silver
nanoparticles (5000 ppm) and colonize F. oxysporum to
decrease to 35% after one hour of exposure, 27% after three hours of
exposure, and 24% after five hours of exposure. The antifungal activity
of AgNPs to the reduce colony formation was apparent within one hour.
The spore extended time exposure to AgNPs from one to five hours
significantly reduced colony formation. Conclusions The antifungal
activity of AgNPs has a great potential for use in control of fungal
spores.
