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

Q3 Agricultural and Biological Sciences Journal of Entomological and Acarological Research Pub Date : 2017-04-21 DOI:10.4081/JEAR.2017.5953

R. Shanmugapriya, A. Nareshkumar, K. Meenambigai, R. Kokila, A. Shebriya, K. Chandhirasekar, A. T. Manikandan, C. Munusamy

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Abstract

Mangifera indica is an important commercial fruit of India and primary food source for the mango leafhopper, Amritodus brevistylus further leading to the development of its associated fungus, Aspergillus niger . The present study was done to assess the antifungal and insecticidal activity of biologically synthesized silver nanoparticles using peel extracts of Raphanus sativus (Brassicaceae). Raphanus sativus 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, Amritodus brevistylus . Silver nanoparticles synthesized using Raphanus sativus is also effective against the fungal pathogen, Aspergillus niger (developed on the infestations of mango leafhopper, Amritodus brevistylus ) showing very strong inhibitory zone (80 mm).

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Raphanus sativus介导的AgNPs对芒果叶蝉、短针蛾及其伴生真菌黑曲霉的抑菌杀虫活性研究

芒果是印度的一种重要商业水果，也是芒果叶蝉Amritodus brevicentor的主要食物来源，这进一步导致了其相关真菌黑曲霉的发展。本研究以萝卜（Brassicaceae）皮提取物为原料，对生物合成的银纳米粒子的抗真菌和杀虫活性进行了评价。萝卜皮提取物在细胞外还原Ag离子和覆盖合成的纳米颗粒以避免进一步团聚方面是有效的。通过紫外-可见光谱、X射线衍射分析、傅立叶变换红外光谱、扫描电子显微镜和能量色散X射线分析对合成的AgNPs进行了表征。生物合成的AgNPs对芒果叶蝉（Amritodus brevicentor）表现出显著的毒性（LC50−7.61 ppm/48小时）。使用萝卜合成的银纳米颗粒也能有效对抗真菌病原体黑曲霉（在芒果叶蝉Amritodus brevictorus的侵扰上发展而来），显示出非常强的抑制区（80毫米）。

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来源期刊

Journal of Entomological and Acarological Research Agricultural and Biological Sciences-Insect Science

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Entomological and Acarological Research (JEAR), formerly the Bollettino di Zoologia Agraria e di Bachicoltura of the Institute of Entomology of the Università degli Studi, Milano, was founded in 1928 by Remo Grandori. Thereafter, Minos Martelli and Luciano Süss hold the direction of the Journal until December 2011. In January 2012 the Editor decided for the new open-access on-line version of JEAR. The Journal publishes original research papers concerning Arthopods, but reviews, editorials, technical reports, brief notes, conference proceeding, letters to the Editor, book reviews are also welcome. JEAR has four main areas of interest: -Entomology (systematics; morphology; biology; biotechnology; agriculture, ornamental and forest entomology; applied entomology; integrated pest management; biological control; apiculture and apidology; medical, urban and veterinary entomology; etc.) -Stored product pests (biology; integrated pest management; etc.) -Insect Ecology (behaviour; biodiversity; taxonomy; plant insect interaction and ecosystems; biological control; alien species; etc.) -Acarology (systematics; morphology; biology; parasitology; control; etc.) The publication of manuscripts is subject to the approval of the Section Editor who has knowledge of the field discussed in the manuscript in accordance with the principles of Peer Review; referees will be selected from the Editorial Board or among qualified scientists of the international scientific community. Articles must be written in English and must adhere to the guidelines and details contained in the Instructions to Authors.