<i>Piper nigrum</i>Leaf and Stem Assisted Green Synthesis of Silver Nanoparticles and Evaluation of Its Antibacterial Activity Against Agricultural Plant Pathogens

Paulkumar, Kanniah; Gnanajobitha, Gnanadhas; Vanaja, M.; Rajeshkumar, S.; Malarkodi, Chelladurai; Pandian, K.; Annadurai, G.

doi:10.1155/2014/829894

Cited by 208 publications

(101 citation statements)

References 29 publications

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“…With 50 ppm and 100 ppm by 84.56% and 93.5% respectively. Paulkumar et al [33] found that the silver nanoparticles have excellent antimicrobial activity against plant pathogens Citrobacter freundii and Erwinia cacticida, they concluded that the silver nanoparticles have a beneficial application in field of plant disease control. Kim et al [34] studied the antimicrobial activity of silver nanoparticles against Acidovorax citrulli and they found the growth of five strains of A. citrulli was inhibited by AgNPs.…”

Section: Effect Of Chitosan and Silver Nps On Radial Growth Of B Fabmentioning

confidence: 99%

Chitosan and Silver Nanoparticles as Control Agents of Some Faba Bean Spot Diseases

Ahmed¹

2017

J Plant Pathol Microbiol

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Faba bean (Vicia fabae L.) is one of the most economic legume crops in Egypt. The antifungal effects of different concentrations of Chitosan and silver nanoparticles (20 ppm, 40 ppm, 60 ppm, 80 ppm and 100 ppm) were studied against aggressive isolates of Botrytis fabae and Alternaria alternata causing chocolate spot disease and Alternaria leaf spot disease respectively. Under laboratory conditions, the application of five concentrations of Chitosan nanoparticles and silver nanoparticles to the cultures of B. fabae and A. alternata showed significant inhibition of mycelial growth. Number of spores/ml decreased with increasing of nanoparticle concentration. Mycelial weight of fungal pathogens also decreased. The lesion growth was suppressed by increasing in the concentration of nanoparticles with significantly different relative to control using detached leaf test. Under greenhouse conditions, chitosan and silver nanoparticles were sprayed in concentrations 60 ppm, 80 ppm, and 100 ppm on faba bean plants. The tested nanoparticles showed significant effect against B. fabae and A. alternata relative to control. The obtained results indicated that the highest reduction of chocolate spot severity was obtained with treatment by 100 ppm of silver nanoparticles (52.94%) followed by chitosan nanoparticles 80 ppm (50.59%). While the application of 100 ppm of chitosan nanoparticles was highly efficient against Alternaria leaf spot where the reduction in disease severity (67.13%) followed by 100 ppm silver nanoparticles which caused reduction rate (61.5%). The obtained results indicated the possibility of using chitosan and silver nanoparticles as a substance in the manufacturing of fungicides to minimize the impact of chocolate spot and Alternaria leaf spot diseases in faba bean. However, further experimental trials under field conditions and safety evaluation studies are needed before the nanoparticles types and concentrations can be used as potential antifungal agents.

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Section: Effect Of Chitosan and Silver Nps On Radial Growth Of B Fabmentioning

confidence: 99%

Chitosan and Silver Nanoparticles as Control Agents of Some Faba Bean Spot Diseases

Ahmed¹

2017

J Plant Pathol Microbiol

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“…Recently, sunlight-induced rapid synthesis of silver nanoparticles has been reported by our group [18,19]. Biosynthesis of silver nanoparticles using bark of Cinnamon zeylanicum [20], Piper nigrum [21], Breynia rhamnoides [22], Avicennia marina [23], Callicarpa maingayi [24], Cissus quadrangularis [25], Artocarpus elasticus [26], and Saraca indica [27] has also been reported. The use of plant barks for the synthesis of nanoparticles avoids the problems that arise due to seasonal variation of biochemicals in the leaves.…”

Section: Introductionmentioning

confidence: 99%

Antioxidant, antimicrobial and cytotoxic activities of silver and gold nanoparticles synthesized using Plumbago zeylanica bark

2016

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Utilization of bioresources for the synthesis of metal nanoparticles is the latest field in green chemistry. The present work reports the utilization of the aqueous bark extract of Plumbago zeylanica for the biosynthesis of Ag and Au NPs. The Ag and Au NPs thus obtained were characterized by UV-Vis, FT-IR, TEM, XRD, and EDAX analysis. The water-soluble components of the extract were responsible for the reduction of Ag ? and Au 3? ions. FT-IR spectra revealed that the -OH and [C=O groups present in the biomolecules were responsible for reduction and stabilization of nanoparticles. TEM images showed the existence of spherical Ag and Au NPs with average size of 28.47 and 16.89 nm, respectively, which was further substantiated by XRD analysis. The presence of elemental Ag and Au along with C and O from the attached biomolecules was proved by EDAX analysis. The antimicrobial, antioxidant, and in vitro cytotoxic activities of the synthesized nanoparticles were studied by disc diffusion, DPPH, and MTT assay methods, respectively. The free radical inhibition was found to be 78.17 and 87.34 % for Ag and Au nanoparticles, respectively. The Ag and Au NPs showed 61.56 and 65.61 % toxicity against DLA cell line, respectively. The DNA binding ability of Ag and Au NPs were investigated using CT-DNA. The hyperchromism shift inferred the groove binding of nanoparticles with CT-DNA.

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“…The study reported spherical silver nanoparticles with size ranging 5-40 nm which reported to have significant activity against normal (LBA4404) and multidrug resistant (LBA4404 MDR) Agrobacterium tumefaciens. Similarly, silver nanoparticles synthesized from Piper nigrum leaf and stem extracts exhibited antibacterial activity against phytopathogenic bacteria such as Citrobacter freundii and Erwinia cacticida (Paulkumar et al, 2014). Further, the antibacterial activity of phytosynthesized silver nanoparticles using aqueous extract of Helianthus tuberosus (sunroot tuber) against phyto pathogenic bacteria was studied by Aravinthan et al (2015).…”

Section: Nanoagroparticles As Potential Nanobactericidesmentioning

confidence: 99%

Nanoagroparticles emerging trends and future prospect in modern agriculture system

Baker

Volova

Prudnikova

et al. 2017

Environmental Toxicology and Pharmacology

171

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Increment of technical knowledge has remarkably uplifted logical thinking among scientific communities to shape the theoretical concepts into near product-oriented research. The concept of nanotechnology has overwhelmed almost all forms of lives and has traded its applications in myriad fields. Despite rapid expansion of nanotechnology, sustainable competitions still do exist in the field of agriculture. In current scenario, agriculture is a manifestation demand to provide adequate nutrition for relentless growing global population. It is estimated that nearly one-third of the global crop production is destroyed annually. The loss owes to various stresses such as pest infestation, microbial pathogens, weeds, natural calamities, lack of soil fertility and much more. In order to overcome these limitations, various technological strategies are implemented but a majority of these have their own repercussions. Hence there is a scrawling progress on the evaluation of nanoparticles into agriculture sector which can reform the modern agricultural system. Applications of these nanomaterials can add tremendous value in the current scenario of a global food scarcity. Nanotechnology can address the adverse effects posed by the abundant use of chemical agrochemicals which are reported to cause biomagnification in an ecosystem. Based on these facts and consideration, present review envisages on nanoparticles as nanoherbicides, nanopesticides, onsite detection agro-pathogens and nanoparticles in post harvest management. The review also elucidates on the importance of nanoparticles in soil fertility, irrigation management and its influence on improving crop yield. With scanty reports available on nanotechnology in agriculture system, present review attributes toward developing nanoagroparticles as the future prospect which can give new facelift for existing agriculture system.

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Piper nigrumLeaf and Stem Assisted Green Synthesis of Silver Nanoparticles and Evaluation of Its Antibacterial Activity Against Agricultural Plant Pathogens

Cited by 208 publications

References 29 publications

Chitosan and Silver Nanoparticles as Control Agents of Some Faba Bean Spot Diseases

Chitosan and Silver Nanoparticles as Control Agents of Some Faba Bean Spot Diseases

Antioxidant, antimicrobial and cytotoxic activities of silver and gold nanoparticles synthesized using Plumbago zeylanica bark

Nanoagroparticles emerging trends and future prospect in modern agriculture system

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