黄地老虎(Agrotis segetum)幼虫被三种类型病毒侵染后呼吸速率与体重的变化
The Changes of the Respiyatory Rate and Weight in CutwormLarvae (Agrotis segetum) Infected with Three Viruses
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摘要: 黄地老虎幼虫感染黄地老虎的核型多角体病毒(AsNPV)、颗粒体病毒(AsGV)和质型多角体病毒(AsCPV)后120～240小时内,呼吸速率(RR)较对照为低,尽管其变化趋势与对照相似。感染AsGV的幼虫,其鲜重随着发育期的延长而逐渐下降,与RR的变化成正比。AsNPV或AsCPV侵染幼虫后,其RR变化与虫鲜重的变化成反比。感染病毒后,幼虫RR高峰的出现与病毒复制的对数增殖期基本同步。健康幼虫和染病幼虫差异显着性测定表明,幼虫鲜重的变化比RR的变化更明显。RR和鲜重的变化可以做为幼虫染病的依据,但不能用来作为判断染病严重程度的指标。Abstract: After infecting with nuclear polyhedrosis virus (AsNPV), granulosis virus (AsGV) or cytoplasmicpolyhedrosis virus (AsCPV) of Agrotis segetum, the respiratory rate (RR) within 120hr to 240hr in cutwormlarvae was lower than that of the control in spite of a similar trend was observed in both two cases.The freshwight of larvae infected with AsGV decreased gradually with the prolongation of its development and showed apositive relation to RR change.The changes of RR in larvae infected with either AsNPV or AsCPV were negative relation to the changes of their fresh weight.The peaks of the RR curve in larvae infected with the viruseswere coincided with the logarithmic phases of the virus replication.Significance of difference test in the infected and uninfected cases showed that the change of larvae fresh weight was more obvious than that of RR, andcould be used for judging the infection of larvae but could not be as the index of the infected situation.
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[10] Allaway G. P. ,et al. 1983. A biochemical and biological comparison of three European isolates of nuclear polyhedrosis viruses from Agrohs segelam. Archives of Virology,75:93~54 -
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