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Sargassum wightii-synthesized ZnO nanoparticles reduce the fitness and reproduction of the malaria vector Anopheles stephensi and cotton bollworm Helicoverpa armigera

文献类型： 外文期刊

作者： Murugan, Kadarkarai 1 ; Roni, Mathath 1 ; Panneerselvam, Chellasamy 3 ; Aziz, Al Thabiani 3 ; Suresh, Udaiyan 1 ; R 1 ;

作者机构： 1.Bharathiar Univ, Sch Life Sci, Div Entomol, Dept Zool, Coimbatore 641046, Tamil Nadu, India

2.Thiruvalluvar Univ, Vellore 632115, Tamil Nadu, India

3.Univ Tabuk, Biol Dept, Fac Sci, Tabuk, Saudi Arabia

4.Thiruvalluvar Univ, Dept Biotechnol, Environm Mol Microbiol Res Lab, Vellore 632115, Tamil Nadu, India

5.King Abdulaziz Univ, Dept Biol Sci, Fac Sci, Jeddah, Saudi Arabia

6.Univ Tabuk, Chem Dept, Fac Sci, Tabuk, Saudi Arabia

7.Univ Putra Malaysia, Dept Med Microbiol & Parasitol, Serdang 43400, Slangor, Malaysia

8.Natl Cent Univ, Dept Chem & Mat Engn, 300 Jhongda RD, Taoyuan 32001, Taiwan

9.Alagappa Univ, Dept Anim Hlth & Management, Biomat & Biotechnol Anim Hlth Lab, Karaikkudi 630004, Tamil Nadu, India

10.Fujian Acad Agr Sci, Inst Plant Protect, Fuzhou 350013, Fujian, Peoples R China

11.Manonmaniam Sundaranar Univ, Sri Paramakalyani Ctr Excellence Environm Sci, Div Biopesticides & Environm Toxicol, Tirunelveli 627412, Tamil Nadu, India

12.Univ Pisa, Dept Agr Food & Environm, Via Borghetto 80, I-56124 Pisa, Italy

关键词： Biosafety; Crop protection; Food utilization; Non-target effects; Poecilia reticulata

期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：2.747； 五年影响因子：2.388 ）

ISSN： 0885-5765

年卷期： 2018 年 101 卷

页码：

收录情况： SCI

摘要： Helicoverpa armigera Hubner is an important polyphagous agricultural insect pest, highly mobile, with a worldwide distribution. In India, it causes substantial losses to cotton, legumes, cereal and vegetable crops. Malaria is caused by parasites from the genus Plasmodium that are transmitted by female anopheline mosquitoes. Anopheles stephensi Liston is the leading vector of malaria in India, parts of Asia and theMiddle East. In this research, we investigated the efficacy of green-synthesized zinc oxide nanoparticles (ZnO NPs) fabricated using the brownmacroalga Sargassum wightii Greville ex J. Agardh. The formation of ZnONPswas confirmed by surface Plasmon resonance band illustrated in UV-vis spectrophotometry. ZnO NP were characterized by XRD, SEM, EDX and FTIR analyses. Low doses of S. wightii extract and ZnO NP showed larvicidal and pupicidal toxicity on A. stephensi and H. armigera. LC50 of ZnO NP ranged from 4.330 (larva I) to 7.430 ppm (pupa) for An. stephensi, and from 12.278 (larva I) to 20.798 ppm (pupa) for H. armigera. Both S. wightii extract and ZnO NPstrongly reduced longevityand fecundity of An. stephensi and H. armigera. In food utilization experiments, the S. wightii extract and ZnO NP reduced food consumption of H. armigera individuals. Nutritional indices declined significantly, while the larval approximate digestibility was significantly higher post-treatment with 25 ppm of ZnO NP and 250 ppm of S. wightii extract. Concerning nontarget effects, in standard laboratory conditions the predation efficiency of guppy Poecilia reticulata was 66.28% and 55.36% against I and II instar larvae of An. stephensi, respectively. In a ZnO NP-contaminated environment, fish predation was boosted to 86.75% and 74.12%, respectively. Overall, the current approach adopted here contributes to control and adaptively manage resistance to other available insecticides in field populations of H. armigera and An. stephensi. (C) 2017 Elsevier Ltd. All rights reserved.

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