Antifungal and insecticidal activities of Raphanus sativus mediated AgNPs against mango leafhopper, Amritodus brevistylus and its associated fungus, Aspergillus niger

Antifungal and insecticidal activities of Raphanus sativus mediated AgNPs against mango leafhopper, Amritodus brevistylus and its associated fungus, Aspergillus niger

<em>Mangifera</em> <em>indica</em> is an important commercial fruit of India and primary food source for the mango leafhopper, <em>Amritodus</em> <em>brevistylus</em> further leading to the development of its associated fungus, <em>Aspergillus<...

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Bibliographic Details
Main Authors:	R. Shanmugapriya, A. Nareshkumar, K. Meenambigai, R. Kokila, A. Shebriya, K. Chandhirasekar, A. Thendral Manikandan, C. Munusamy
Format:	Article
Language:	English
Published:	PAGEPress Publications 2017-04-01
Series:	Journal of Entomological and Acarological Research
Subjects:	Bio-synthesis AgNPs Biology of mango leafhopper Insecticidal activity Antifungal activity
Online Access:	http://www.pagepressjournals.org/index.php/jear/article/view/5953

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Summary:	<em>Mangifera</em> <em>indica</em> is an important commercial fruit of India and primary food source for the mango leafhopper, <em>Amritodus</em> <em>brevistylus</em> further leading to the development of its associated fungus, <em>Aspergillus</em> <em>niger</em>. The present study was done to assess the antifungal and insecticidal activity of biologically synthesized silver nanoparticles using peel extracts of <em>Raphanus</em> <em>sativus</em> (Brassicaceae). <em>Raphanus sativus</em> peel extract is effective in extracellular reduction of Ag ions and capping the synthesized nanoparticles avoiding further agglomeration. The synthesized AgNPs are characterized by UV-vis spectroscopy, X-ray diffraction analysis, fourier transform infrared spectroscopy, scanning electron microscopy and energy dispersive x-ray analysis. Biologically synthesized AgNPs exhibited significant toxicity (LC50 − 7.61 ppm/48h) over mango leafhopper, <em>Amritodus</em> <em>brevistylus</em>. Silver nanoparticles synthesized using <em>Raphanus</em> <em>sativus</em> is also effective against the fungal pathogen, <em>Aspergillus</em> <em>niger</em> (developed on the infestations of mango leafhopper, <em>Amritodus</em> <em>brevistylus</em>) showing very strong inhibitory zone (80 mm).
ISSN:	2038-324X 2279-7084