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Effect of exposure to chlorpyrifos on the cuticular and internal lipid composition of Blattella germanica males

Insect Science 2016年第1期23卷 94-104页

作者： Monika Paszkiewicz Agata Sikora Mieczystawa I. Bogus Emilia Wloka Piotr Stepnowski Marek Golebiowski Laboratory of Natural Products Analysis Department of Environmental Analysis Institute for Environmental and Human Health ProtectionFaculty of Chemistry University of Gdansk ul. Wita Stwosza 63 80-308 Gdansk Institute of Parasitology Polish Academy ofSciences Twarda 51155 00-818 Warszawa Poland

The results of our research on the cuticular and internal lipids of Blattella germanica males provide new information on variation in the composition of the cuticular and internal lipids ofB. germanica males after exposure to the presence of the insecticide. gas chromatography and gas chromatography-mass spectrometry analyses were used to identify and quantify the cuticular and internal lipid composition in males and males exposed to insecticide. There were significantly more acids having an even number of carbon atoms in the molecule, and these were also generally in higher concentrations. The following acids were in a higher concentration： C16：0 and C18：1, C18：2, C18：0. In both males and males exposed to insecticide, 24 fatty acids ranging from C6 to C22 were determined. However, there was a significantly higher content of fatty acids in the surface lipids of B. germanica males after exposure to insecticide. Our results indicate a higher content of n-alkanes, sterols, particularly cholesterol, fatty acids, and fatty acid methyl esters in the B. germanica surface after exposure to chlorpyrifos than in males that were not exposed.

关键词： Blattella germanica chlorpyrifos cockroach cuticular and internal lipid GC-MS

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