Omics-Based Mechanistic Insight Into the Role of Bioengineered Nanoparticles for Biotic Stress Amelioration by Modulating Plant Metabolic Pathways

Kumari, Madhuree; Pandey, Shipra; Mishra, Shaunak; Giri, Ved Prakash; Agarwal, Lalit; Dwivedi, Sanjay; Pandey, Alok Kumar; Nautiyal, Chandra Shekhar; Mishra, Aradhana

doi:10.3389/fbioe.2020.00242

Cited by 33 publications

(7 citation statements)

References 76 publications

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“…In our previous studies, crop with a minimal dose and the nonconsiderable impact of biogenic silver nanoparticles have been evaluated on the soil environment. 57,66 Bioactive silver nanoparticles are environmentally safer than particles obtained from a physical or chemical process. Due to the noninterference of toxic compounds in their technological process and the involvement of the biological moieties in their production, the particles exhibited a positive impact owing to the large application for sustainable crop protection in an ecofriendly manner.…”

Section: Gc−ms Analysismentioning

confidence: 99%

Hybridization of Chitosan and Biosynthesized Silver Nanoparticles to Enhance Antimicrobial Activity against Phytopathogens in Tomato (Solanum lycopersicum)

Giri

Pandey

Kumari

et al. 2022

ACS Agric. Sci. Technol.

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Chitosan-hybridized biogenic silver nanoparticles (Ch@BSNP) were synthesized with the extracellular metabolites of Trichoderma viride. Chitosan hybridization- and T. viride-derived compounds associated with the particles were confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM)-energy dispersive X-ray analysis (EDX), and gas chromatography–mass spectrometry (GC–MS) analysis. The particles had a ζ-potential 19.2 mV and a hydrodynamic size of 97.74 nm with a polydispersity index (PDI) of 0.198. TEM analysis revealed particles of spherical shape and actual size range between 30 and 35 nm. The antimicrobial activity of these particles was compared to chitosan alone and nonhybridized particles against three bacterial phytopathogens, viz, Pseudomonas syringae, Erwinia chrysanthemi, and Xanthomonas campestris. The zone size was 50.0, 29.75, and 34.00 mm with Ch@BSNP, respectively, while the corresponding values for BSNP were 29.75, 23.5, and 18.00 mm. In a liquid culture assay, exposure to Ch@BSNP significantly decreased the size of bacterial cells from 3905.00 to 2711.00 nm for P. syringae, from 3484.00 to 3386.00 nm for E. chrysanthemi, and from 7823.33 to 5956.33 nm for X. campestris. Similar increased activity of Ch@BSNP was also observed against four fungal plant pathogens, viz, Sclerotium rolfsii, Rhizoctonia solani, Alternaria alternata, and Alternaria brassicicola. The Ch@BSNP also demonstrated lower toxicity on noncancerous human cell lines than antimicrobial efficacy. In a greenhouse study, Ch@BSNP reduced the leaf spot disease incidence in tomato by up to 60% and also enhanced several physical and physiological attributes, viz, root and shoot lengths, fresh and dry weights, and chlorophyll and carotenoid contents compared to the diseased plant. These observed beneficial effects and overall biocompatibility of Ch@BSNP suggest that this material may be a safe and effective antimicrobial bioagent for sustainable nano-enabled agriculture.

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Section: Gc−ms Analysismentioning

confidence: 99%

Hybridization of Chitosan and Biosynthesized Silver Nanoparticles to Enhance Antimicrobial Activity against Phytopathogens in Tomato (Solanum lycopersicum)

Giri

Pandey

Kumari

et al. 2022

ACS Agric. Sci. Technol.

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“…In the plant system, mitigation of ROS excess concentrations generally leads to activation of either enzymatic or non-enzymatic antioxidant systems. Plants secrete several enzymes, including catalase (CAT), ascorbate peroxidase (APX), superoxide dismutase (SOD), glutathione reductase (GR), dehydroascorbate reductases (DHAR) and monodehydroascorbate reductases (MDHAR,); the nonenzymatic system involves quenching of ROS via synthesis of ascorbic acid (AsA), glutathione (GSH), carotenoids which quench free radicals and protect the plant cell from oxidative stress [ 52 , 53 ].…”

Section: Reactive Oxygen Species and Abiotic Stress Factorsmentioning

confidence: 99%

The Potential Application of Endophytes in Management of Stress from Drought and Salinity in Crop Plants

Verma¹,

Kumar

et al. 2021

Microorganisms

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Endophytic microorganisms present inside the host plant play an essential role in host fitness, nutrient supply and stress tolerance. Endophytes are often used in sustainable agriculture as biofertilizers, biopesticides and as inoculants to mitigate abiotic stresses including salinity, drought, cold and pH variation in the soil. In changing climatic conditions, abiotic stresses create global challenges to achieve optimum crop yields in agricultural production. Plants experience stress conditions that involve endogenous boosting of their immune system or the overexpression of their defensive redox regulatory systems with increased reactive oxygen species (ROS). However, rising stress factors overwhelm the natural redox protection systems of plants, which leads to massive internal oxidative damage and death. Endophytes are an integral internal partner of hosts and have been shown to mitigate abiotic stresses via modulating local or systemic mechanisms and producing antioxidants to counteract ROS in plants. Advancements in omics and other technologies have been made, but potential application of endophytes remains largely unrealized. In this review article, we will discuss the diversity, population and interaction of endophytes with crop plants as well as potential applications in abiotic stress management.

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“…Metals have been used for their anti-microbial activity since ages [ 122 ]. Several metal nanoparticles including Ag, Au, ZnO, Cu, CuO can be used for spray coating of the surfaces to kill SARS-CoV-2.…”

Section: Protection and Mitigation Against Sars-cov-2mentioning

confidence: 99%

Nano-engineered tools in the diagnosis, therapeutics, prevention, and mitigation of SARS-CoV-2

Kamat

Kumari

Jayabaskaran

2021

Journal of Controlled Release

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The recent outbreak of SARS-CoV-2 has forever altered mankind resulting in the COVID-19 pandemic. This respiratory virus further manifests into vital organ damage. Nanotechnology has been moonlighting in the scientific community to combat several severe diseases. This review highlights the triune of the nano-toolbox in the areas of diagnostics, therapeutics, prevention, and mitigation of SARS-CoV-2. Nanogold test kits have already been on the frontline of rapid detection. Breath tests, magnetic nanoparticle-based nucleic acid detectors, and the use of Raman Spectroscopy present myriads of possibilities in developing point of care biosensors. This will ensure sensitive, affordable, and accessiblemass surveillance. Most of the therapeutics are trying to focus on blocking the viral entry into the cell and fighting with cytokine storm. Nanobodies as vaccines against S and N protein have regained importance. All the vaccines coming with promising phase 3 clinical trials have used nano-delivery systems for delivery of vaccine-cargo. The use of chemically diverse metal, carbon and polymeric nanoparticles, nanocages and nanobubbles demonstrate opportunities to develop anti-viral nanomedicine. Nanotechnology also presents myriads of options for targeted drug delivery. In order to prevent and mitigate the viral spread, high-performance charged nanofiber filters, spray coating of nanomaterials on surfaces, novel materials for PPE kits and facemasks have been developed that accomplish over 90% capture of airborne SARS-CoV-2. Nano polymer-based disinfectants are being tested to make smart-transport for human activities. Despite the promises of this toolbox, challenges in terms of reproducibility, specificity, and efficacy are yet to overcome.

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Omics-Based Mechanistic Insight Into the Role of Bioengineered Nanoparticles for Biotic Stress Amelioration by Modulating Plant Metabolic Pathways

Cited by 33 publications

References 76 publications

Hybridization of Chitosan and Biosynthesized Silver Nanoparticles to Enhance Antimicrobial Activity against Phytopathogens in Tomato (Solanum lycopersicum)

Hybridization of Chitosan and Biosynthesized Silver Nanoparticles to Enhance Antimicrobial Activity against Phytopathogens in Tomato (Solanum lycopersicum)

The Potential Application of Endophytes in Management of Stress from Drought and Salinity in Crop Plants

Nano-engineered tools in the diagnosis, therapeutics, prevention, and mitigation of SARS-CoV-2

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