Abstract
The possibility of using silver nanoparticles (AgNPs) to enhance the plants growth, crop production, and control of plant diseases is currently being researched. One of the most effective approaches for the production of AgNPs is green synthesis. Herein, we report a green and phytogenic synthesis of AgNPs by using aqueous extract of strawberry waste (solid waste after fruit juice extraction) as a novel bioresource, which is a non-hazardous and inexpensive that can act as a reducing, capping, and stabilizing agent. Successful biosynthesis of AgNPs was monitored by UV-visible spectroscopy showing a surface plasmon resonance (SPR) peak at ~415 nm. The X-ray diffraction studies confirm the face-centered cubic crystalline AgNPs. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques confirm the rectangular shape with an average size of ~55 nm. The antibacterial and antifungal efficacy and inhibitory impact of the biosynthesized AgNPs were tested against nematode, Meloidogyne incognita, plant pathogenic bacterium, Ralstonia solanacearum and fungus, Fusarium oxysporum. These results confirm that biosynthesized AgNPs can significantly control these plant pathogens.
Highlights
In order to fully utilize the advantage of nanotechnology in plant disease protection and management, it becomes essential to analyze the effect of nanosized particles on microbes and their application in synthesizing fungicides and pesticides
Fourier transform infrared (FTIR) spectroscopic analysis was performed to ascertain the involvement of possible phytochemicals and bio molecules used in the synthesis
The morphology and size of the biosynthesized AgNPs were analyzed by scanning electron microscopy (SEM, NOVA nano FE-SEM 450 FEI, Hillsboro OR, USA) and Transmission electron microscopy (TEM, TECNAI-G-20, Hillsboro, OR, USA)
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. Significant development in nanomaterials synthesis, such as polymeric, carbon-based, and metallic NPs has attracted researcher attention for applications in managing plant diseases caused by pathogens [20]. In order to fully utilize the advantage of nanotechnology in plant disease protection and management, it becomes essential to analyze the effect of nanosized particles on microbes and their application in synthesizing fungicides and pesticides. By keeping it in our mind, in this article we report a green, handy, and environmentally friendly approach for the biosynthesis of AgNPs, using aqueous extract of strawberry waste (solid waste after fruit juice extraction) as a novel bioresource, which is non-hazardous and inexpensive.
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