The effect of nucleopolyhedrovirus infection and/or parasitism by Microplitis pallidipes on hemolymph proteins, sugars, and lipids in Spodoptera exigua larvae

文献类型： 外文期刊

第一作者： Jiang, Jie-Xian

作者： Jiang, Jie-Xian;Ji, Xiang-Yun;Yin, Yang-Yi;Wan, Nian-Feng

作者机构：

关键词： Lipid;Protein;Sugar;Nucleopolyhedrovirus;Spodoptera exigua (Hübner);Microplitis pallidipes Szepligeti

期刊名称：BIOCONTROL （ 影响因子：3.571； 五年影响因子：3.243 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： We determined the physiological effects of joint and separate nucleopolyhedrovirus (NPV) infection and parasitism by the endoparasitoid Microplitis pallidipes Szepligeti on biochemical events in the noctuid Spodoptera exigua (Hubner). The results indicated that in parasitized larvae, compared to healthy larvae, total protein concentration in host hemolymph began to decline and total sugar concentration significantly increased by the first day, while lipid content in the host body significantly increased by the second day after parasitization. Meanwhile, in jointly infected and parasitized hosts, compared to parasitized larvae, total protein concentration was consistently higher, total sugar concentration was consistently lower, and lipid content became higher by the second day after treatment. In virus-infected larvae, compared to healthy larvae, total protein concentration sharply declined during the first two days but increased by the third, while total sugar concentration increased on the second and third days after virus infection but decreased at other observation times, and lipid content began to increase by the second day after virus infection. Finally, in larvae that were both parasitized and virus-infected, compared to just virus-infected larvae, total protein concentration increased during the first two days but decreased by the third, total sugar concentration increased only on the first and fourth days, and lipid content decreased significantly on the first day but began to increase by the second day after treatment. These findings led us to conclude that parasitization inhibited protein mobilization but stimulated sugar mobilization in host hemolymph, and promoted lipid mobilization in the host body, while Spodoptera exigua NPV infection stimulated protein mobilization induced by parasitization but inhibited sugar mobilization induced by parasitization.

分类号： S476

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