| 棉铃虫核型多角体病毒对宿主昆虫的弱化作用 |
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| 引用本文： | 张忠信,孙修炼,张光裕.棉铃虫核型多角体病毒对宿主昆虫的弱化作用[J].植物保护学报,1998,25(3):204-208. |
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| 作者姓名： | 张忠信 孙修炼 张光裕 |
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| 作者单位： | 中国科学院武汉病毒所，中国科学院武汉病毒所，中国科学院武汉病毒所 武汉 430071，武汉 430071，武汉 430071 |
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| 摘 要： | 棉铃虫核型多角体病毒（ＨａＮＰＶ）感染２龄幼虫，感染３ｄ，幼虫体长和体重明显小于对照幼虫。病毒感染４龄幼虫，残留活虫幼虫历期延长，但取食量减少３７．５２％。病毒感染５龄幼虫，感染幼虫蜕皮时间延迟１８ｈ，幼虫历期延长２ｄ。幼虫血淋巴蛋白电泳结果表明，幼虫蜕皮时间延迟主要原因是蜕皮过程延长。病毒感染５龄初幼虫，残留活虫蛹重减轻１４．１９％，成虫产卵量减少２０．５８％。结果表明，ＨａＮ－ＰＶ感染棉铃虫幼
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| 关 键 词： | 棉铃虫 核型 多角体病毒 弱化 宿虫昆虫 |
THE DEBILITATION OF HaNPV ON COTTON BOLLWORM |
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| Zhang Zhongxin,Sun Xiulian and Zhang Guangyu.THE DEBILITATION OF HaNPV ON COTTON BOLLWORM[J].Acta Phytophylacica Sinica,1998,25(3):204-208. |
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| Authors: | Zhang Zhongxin Sun Xiulian and Zhang Guangyu |
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| Institution: | Wuhan Institute of Virology, Chinese Academy of Science, Wuhan,Wuhan Institute of Virology, Chinese Academy of Science, Wuhan and Wuhan Institute of Virology, Chinese Academy of Science, Wuhan |
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| Abstract: | The body length and weight of cotton bollworm Helicoverpa armigera (Hubner) larvae three days after infected in 2nd instar by HaNPV, a specific nuclear polyhedrosis virus pathogenetic to cotton bollworm, were significantly decreased as compared with the healthy ones. As the virus infected in 4th instar, the larval duration of survivals was prolonged, but their consumption of diet was 37. 52% reduced. While the virus infection took place in fifth instar, the molting time of infected larvae was 18 hours delayed, the larval duration was 2 days lengthened, the weight of pupal survivals was 14. 9% declined, and the fecundity of adult survivals was 20. 58% lessened. The result of larval haemalymph protein electrophoresis showed that the delayed larval molting time was mainly caused by the lengthened molting process. It can be concluded that the infection of HaNPV in cotton bollworm larvae caused not only mortality, but also strong debilitation on the development, feeding and oviposition of cotton bollworm survivals. |
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| Keywords: | cotton bollworm HaNPV debilitation |
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