Journal
BIORESOURCE TECHNOLOGY
Volume 101, Issue 22, Pages 8772-8776Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.06.065
Keywords
Amylomyces rouxii; Phylogenetic analysis; Silver nanoparticles; Date palm; Antimicrobial activity
Funding
- DNA Research, King Saud University, Riyadh, KSA
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A fungal strain, KSU-09, isolated from the roots of date palm (Phoenix dactylifera), was identified as Amylomyces rouxii based on sequence analysis of the internal transcribed spacer (ITS) region of its rRNA genes. Mycelia-free water extracts obtained from mycelium suspended in water for 72 h facilitated the production of stable, predominantly monodispersed and spherical silver nanoparticles (AgNPs) in the size range of 5-27 nm upon addition of 1 mM silver nitrate, as determined by the XRD, AFM and TEM. The AgNPs exhibited antimicrobial activity against Shigella dysenteriae type I, Staphylococcus aureus, Citrobacter sp., Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Candida albicans and Fusarium oxysporum. Thus, the strain KSU-09 could be used for simple, non-hazardous and efficient synthesis of antimicrobial AgNPs. (C) 2010 Elsevier Ltd. All rights reserved.
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