Abstract
In this work, silver nanoparticles have been mycofabricated from Picoa sp. (a desert truffle) for the first time. Also, the antifungal activity of Picoa-AgNPs has been investigated against three pathogenic fungi, including Pythium sp., Aspergillus flavus, and Aspergillus niger, which can cause severe damage to health and agriculture. Morphology and physico-chemical characteristics of the mycofabricated AgNPs were thoroughly described by UV–VIS, XRD, FESEM, TEM, FT-IR and Zeta Potential analyses. The optimum synthesis time of the AgNPs during the reaction progress was 60 min and outstanding at the peak of 440 nm. Nano-irregular shapes with an average size of 19.5 nm and high stability (−20.9 mV) have been recorded. FT-IR spectra showed high amino acid content in the Picoa sp. extract efficiently will achieves the bioreduction reaction of Ag ions to Ag atoms. The higher inhibition percentage of Picoa-AgNPs was 30.81% against Pythium sp. at the concentration of 10%, while the concentration of 5% showed a low inhibitory effect (13.51%). The concentration of 5% exhibited an inhibitory impact reached 16.67% against Aspergillus niger. These findings have shown a promising outlook for the use of Picoa (Pezizales) in the production of AgNPs for its use as antifungal nanodrug.
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