The Impact of Silver Nanoparticles on Bacterial Aerobic Nitrate Reduction Process

S, Hosseinkhani B Shahrokh

doi:10.4172/2155-9821.1000152

Cited by 24 publications

(8 citation statements)

References 24 publications

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“…Also, the effect of nanoparticles on Pseudomonas stutzeri (denitrifi er), Azotobacter vinelandii (nitrogen fi xer) and Nitrosomonas europaea (nitrifi er) have been reported (Yang et al 2013 ). Shahrokh et al ( 2014 ) have demonstrated that nano silver at low doses exerts no adverse effect on nitrate reductase activity of Rhizobium and Azotobacter . However, size-dependent toxicity of nanoparticles has been demonstrated by Choi and Hu ( 2008 ), who have suggested that nanoparticles of size < 5 nm exhibit more toxicity to nitrifi cation bacteria.…”

Section: Nanoparticles Interaction With Soil Bacteriamentioning

confidence: 99%

Understanding the Role of Nanomaterials in Agriculture

Dwivedi

Saquib

Al‐Khedhairy

et al. 2016

Microbial Inoculants in Sustainable Agricultural Productivity

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Nanotechnology offers immense opportunities for improvement in the quality of life through applications in agriculture and the food systems. Development of nanotechnology-based novel agro-products, viz., nanosensors, nano-fertilizers, nano-pesticides and nanoformulations of biocontrol agents, is currently a subject of intense investigation. A variety of nanomaterials has been recommended for use in agriculture, in order to help reduce the consumption of agrochemicals by use of smart delivery systems, minimize the nutrient losses and increase the yield through optimized water and nutrients management. Nanotechnology-derived devices have also been explored in the areas of plant breeding and genetics. Additionally, the agricultural products and/or by-products can be utilized as a source for developing bio-nanocomposites. Nevertheless, the potential advantages of nanotechnology applications in the agricultural sector are still marginal, and have not been commercialized to a signifi cant extent, as compared to other industrial sectors. Researches in the area of agricultural nanotechnology are being extensively pursued in quest for the solutions to the agricultural and environmental challenges, such as sustainability, increased productivity, disease management and crop protection through innovative techniques for monitoring, assessing and controlling the agricultural practices. This chapter provides a basic knowledge about the role of nanotechnology in developing sustainable agriculture and environment, and eventually in the welfare of human society, at large, in the near future.

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Section: Nanoparticles Interaction With Soil Bacteriamentioning

confidence: 99%

Understanding the Role of Nanomaterials in Agriculture

Dwivedi

Saquib

Al‐Khedhairy

et al. 2016

Microbial Inoculants in Sustainable Agricultural Productivity

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“…Several studies have shown that different mycorrhizal fungus species respond differently to NPs. Wang et al [293] observed that Glomus caledonium could survive ZnO NP toxicity better than G. versiforme, affecting root colonization. This tolerance to heavy metals such as Zn, Cu, Pb, and Cd helped G. caledonium colonize further [293].…”

Section: Nanoparticles' Effect On the Bacterial And Fungal Population...mentioning

confidence: 99%

“…Wang et al [293] observed that Glomus caledonium could survive ZnO NP toxicity better than G. versiforme, affecting root colonization. This tolerance to heavy metals such as Zn, Cu, Pb, and Cd helped G. caledonium colonize further [293]. Even though there is clear evidence of NPs in soil microbial communities, there is a lack of literature linking soil variables to NPs' harmful behavior toward soil biota.…”

Section: Nanoparticles' Effect On the Bacterial And Fungal Population...mentioning

confidence: 99%

Nanotechnology as a Promising Tool against Phytopathogens: A Futuristic Approach to Agriculture

Ray,

Mishra,

Mohanta

et al. 2023

Agriculture

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It is crucial to increase agricultural yields to fulfill the rising demand for food and the security it provides for a growing population. To protect human food supplies and agricultural outputs, disease management is essential. Plant infections are a silent enemy of economic crop production and cross-border commerce of agricultural goods, inflicting roughly 20–30% losses a year. If infections are accurately and rapidly detected and identified, this can be minimized, and specialized treatment can be given. The current methods of preventing plant diseases are utterly dependent on agrochemicals, which have adverse effects on the ecosystem. By improving their solubility, lengthening their shelf life, and lowering their toxicity, nanotechnology can help reduce the harmful effects of pesticides and fungicides in a sustainable and environmentally responsible way. Engineered nanoparticles can be used to control plant diseases either by using the nanoparticle itself or as a carrier for fungicides and antibiotics. Regardless of the many prospective benefits of using nanoparticles, few nanoparticle-based products have been made commercially available for use in more widespread applications. For rapid and accurate spotting of plant diseases, the combination of nanotechnology systems with molecular diagnostics acts as an alternative where the detection may be taken in on a portable miniaturized appliance. By minimizing the application of chemicals and adopting quick identification of infections, nanotechnology might sustainably minimize many issues in disease control. This review outlines the tools and techniques used in the diagnosis of plant diseases and their management and explains how nanotechnology works, along with the current tools and their prospects for the future of plant protection.

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“…Nano-form of iron has been used extensively for ground water remediation and disinfection of waste water (Diao and Yao 2009). Release of nanomaterials to soil systems might be beneficial to certain microbes (Nemecek et al 2014) but it can also have a negative impact on the beneficial bacteria and thus increases the possibility of affecting biogeochemical cycles like nitrogen or sulfur cycles (Shahrokh et al 2014). It has been reported that the Fe 3 O 4 nanoparticles showed antimicrobial activity by inducing oxidative stress, morphological variation and cytotoxic effect on Escherichia coli (Auffan et al 2008) and also have a bactericidal effect on various pathogenic bacteria (Prema and Selvarani 2012).…”

Section: Introductionmentioning

confidence: 99%

Effects of iron nanoparticles on iron-corroding bacteria

et al. 2017

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The toxicological effects of FeO nanoparticles were evaluated with an iron-corroding bacterium (ICB) for preventing the biocorrosion of iron. FeO nanoparticles of 18 nm were successfully prepared and characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) patterns and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS). A halophilic ICB strain L4 was isolated from Ribandar saltpan Goa, India and identified biochemically and by 16S rRNA gene sequence analysis as sp. The FeO nanoparticles in increasing doses (0.1-100 mg/L) caused transformation in growth and sulfide production of ICB strain L4. SEM-EDS analysis revealed a deformed cell structure with adsorption of nanoparticle on the cell surface and increased cell size. Comet assay revealed genotoxic effect of FeO nanoparticles on strain L4 which resulted in dose-dependent DNA damage by increasing percentage tail DNA from 5 to 88% with increasing FeO nanoparticles concentration. Furthermore, sulfide production rate was reduced to 11.8% in presence of 100 mg/L FeO nanoparticles which reduced the corroding property of ICB strain L4; thus, it was unable to corrode the iron nail in presence of FeO nanoparticle. This work suggests the possible application of FeO nanoparticle in addressing biocorrosion problems faced by different industries.

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The Impact of Silver Nanoparticles on Bacterial Aerobic Nitrate Reduction Process

Cited by 24 publications

References 24 publications

Understanding the Role of Nanomaterials in Agriculture

Understanding the Role of Nanomaterials in Agriculture

Nanotechnology as a Promising Tool against Phytopathogens: A Futuristic Approach to Agriculture

Effects of iron nanoparticles on iron-corroding bacteria

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