Evaluating green silver nanoparticles as prospective biopesticides: An environmental standpoint.

Malini S Bapat, Hema Singh, Sudheesh K Shukla, Prabal Pratap Singh, Dai-Viet N Vo, Alpa Yadav, Abhineet Goyal, Ajit Sharma, Deepak Kumar

Journal: Chemosphere 2021;286(Pt 2):131761

PMID: 34375828

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Abstract

The current method of agriculture entails the usage of excessive amounts of pesticides and fertilizers. The blatant use of conventional pesticides and fertilizers over several decades has led to their bioaccumulation with adverse effects on soil biodiversity and the development of resistance by pests. With the decline in clinically useful antibiotics and increase in multi drug resistant microbes, it is imperative to develop new and effective antimicrobial therapies. Growing awareness and demand for efficacious biorational pesticides are on the rise. Silver nanoparticles are widely known antimicrobials and have been in use for several purposes for a long time. This work reviews the implications of applying silver nanoparticles in agriculture and their possible consequences. The physiological and biochemical changes in plants due to the uptake of silver nanoparticles as a consequence of its morphology, capping biomolecules and method of application are comprehensively discussed in this review article. Studies on tolerance levels or stress due to silver nanoparticles by variation in concentration/doses on diverse flora and fauna are also analyzed here. Further, phytotoxicity and genotoxicity due to the metal as well as its transformation in soil, water and sludge are taken into account. We also gauge the potential of biogenic silver nanoparticles-viable antimicrobial agents for enhanced applications in agriculture as biopesticides.

Address: Cummins College of Engineering for Women, Affiliated to Savitribai Phule Pune University, Pune, 411052, India. Electronic address: [email protected].; Defence Institute of Advanced Technology, Girinagar, Pune, 411025, India.; Department of Biomedical Engineering, School of Biological Engineering and Life Sciences, Shobhit University, Meerut, 250110, India.; Department of Chemistry, GLA University, Mathura, UP, 281406, India.; Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam.; Department of Applied Chemistry, School of Vocational Studies & Applied Sciences, Gautam Budha University, Greater Noida, Uttar Pradesh, 201308, India.; School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India.; School of Chemical Engineering and Physical Science, Lovely Professional University, Phagwara, Punjab, 144411, India.; School of Chemical Engineering and Physical Science, Lovely Professional University, Phagwara, Punjab, 144411, India. Electronic address: [email protected].

DOI: 10.1016/j.chemosphere.2021.131761

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MeSH Terms: Biological Control Agents, Fertilizers, Metal Nanoparticles, Prospective Studies, Silver