| 稻褐飞虱致害性的转化(同翅目：飞虱科) |
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| 引用本文： | 张志涛 陈 伟 姜人春 张燕 蔡祥承. 稻褐飞虱致害性的转化(同翅目：飞虱科)[J]. 昆虫学报, 1997, 40(-1): 110-115 |
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| 作者姓名： | 张志涛 陈 伟 姜人春 张燕 蔡祥承 |
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| 摘 要： | 稻褐飞虱Nilaparvata lugens(Stal)在抗虫品种上并非完全不取食，亦并非完全不能完成生长发育，经在抗虫品种上连续多代强迫饲养，其致害性将发生明显的变化，逐渐从不能致害转化为能适应这种抗虫品种。致害性的转化是渐变的，在世代间似有遗传积累。由于抗虫品种抗虫机制及其遗传背景的差异，褐飞虱在不同的抗虫品种上致害性转化的进程和速率亦不同。
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| 关 键 词： | 稻褐飞虱 致害性 致害性转化 |
THE VIRULENCE SHIFT OF RICE BROWN PLANTHOPPER NILAPARVATA LUGENS (STAL) (HOMOPTERA: DELPHACIDAE) ON DIFFERENT RICE VARIETIES |
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| Zhang Zbitao Chen Wei Jiang Renchun Zbang Yan Cai Xiangcheng. THE VIRULENCE SHIFT OF RICE BROWN PLANTHOPPER NILAPARVATA LUGENS (STAL) (HOMOPTERA: DELPHACIDAE) ON DIFFERENT RICE VARIETIES[J]. Acta Entomologica Sinica, 1997, 40(-1): 110-115 |
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| Authors: | Zhang Zbitao Chen Wei Jiang Renchun Zbang Yan Cai Xiangcheng |
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| Abstract: | Most of the individuals of rice brown planthopper, Nilaparvata lugens(Stal), were unable to feed and survive as well as develop on resistant rice varieties.After being forced to feed on resistant varieties for several generations, the abilities for brown planthopper to infest the varieties changed significantly. But the virulence shifted gradually. It seemed that there was a heritable accumulation from generation to generation. The course and rate of the shift of virulence differed from different resistant varieties as a result of their diversities in both resistant mechanism and genetic background. |
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| Keywords: | Nilaparvata lugens virulence shift of virulence |
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