两种纳米复合材料对棉花叶虫的毒理学、生物学和生化影响(Boisduval, 1833)

S. El-Rahman, Sayeda S. Ahmed, M. Kader
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引用次数: 2

摘要

棉花叶虫,Spodoptera littoralis (Boisduval, 1833)是埃及最危险的害虫之一,对不同作物造成重大经济损失。本研究旨在评价两种纳米复合材料银(Ag)和氧化石墨烯(GO)纳米材料在3种浓度(1、10、100 ml/L)下对氯化镁(Mg-Chl/Ag和Mg-Chl/GO)对2龄海蛾的毒理学、生物学和生化效应。结果表明,幼虫死亡率与纳米复合材料浓度的增加和暴露时间呈正相关。纳米氧化石墨烯复合材料的死亡率高于纳米银。mg - chl /Ag和mg - chl /GO化合物光照2 h时,LC50(50%致死浓度)分别为10.27和16.14 mg/L。研究了两种纳米复合材料对2龄海蛾幼虫的生物学影响。各浓度处理的幼虫、蛹持续时间、化蛹率、蛹羽化率和蛹重均显著低于未处理的幼虫。所有的测试样本都显示总碳水化合物、总蛋白质和总脂质的减少。研究结果表明,将银和氧化石墨烯纳米材料覆盖在亲氯氧化镁上可能是一种有效的控制滨海紫穗病的成分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Toxicological, biological and biochemical effects of two nanocomposites on cotton leaf worm, Spodoptera littoralis (Boisduval, 1833)
Cotton leaf worm, Spodoptera littoralis (Boisduval, 1833), is one of the most dangerous pests in Egypt, causing economically significant losses of different crops. The present study was aimed to evaluate toxicological, biological and biochemical effects of two nanocomposites, Silver (Ag) and graphene oxide (GO) nanomaterials over magnesium chlorophillin (Mg-Chl/Ag and Mg-Chl/GO) at three concentrations (1, 10, 100 ml/L) against 2 instar larvae of S. littoralis. The results showed that larval mortality rate was positively correlated with the increase of concentrations of the tested nanocomposites and time after exposure. The mortality rate in nanographene oxide composite were higher than nano silver. LC50 (lethal concentration of 50% of a group of test larvae) values were 10.27 and 16.14 mg/L at Mg-Chl/Ag and Mg-Chl/GO compound at 2 h exposure to light. Some biological aspects of S. littoralis resulted from the treated 2 instars larvae with two nanocomposites were recorded. Larval, pupal durations, pupation, adult emergence rate and pupal weight were significantly lower in all concentrations compared to untreated larvae. All tested samples showed decrease in total carbohydrates, total proteins and total lipids. Obtained results suggest that using silver and graphene oxide nanomaterials over the magnesium chlorophillin would be a useful component for controlling S. littoralis.
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来源期刊
Polish Journal of Entomology
Polish Journal of Entomology Agricultural and Biological Sciences-Insect Science
CiteScore
0.90
自引率
0.00%
发文量
11
期刊介绍: The Polish Journal of Entomology was founded in 1922 as a periodical of the Polish Entomological Society under the title Polskie Pismo Entomologiczne (subtitle Bulletin Entomologique de Pologne). The journal publishes original research papers and reviews from any entomological discipline. The Polish Journal of Entomology is sponsored by the Polish Entomological Society and the Ministry of Science and Higher Education. It deals with all aspects of entomology and has no geographical limits. Four issues of the journal are published annually. It is covered by the Zoological Record, Entomological Abstracts, Biological Abstracts. Each article has its own DOI
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