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当前位置: 首页 > 文章 > 水稻矮缩病毒对介体昆虫黑尾叶蝉生物学参数及种群增长的影响 中国水稻科学 2018 (1) 89-95
Position: Home > Articles > Influence of Rice dwarf virus on Biological Parameters and Population Growth of Vector Insect Nephotettix cincticeps(Uhler)(Hemiptera: Cicadellidae) Chinese Journal of Rice Science 2018 (1) 89-95

水稻矮缩病毒对介体昆虫黑尾叶蝉生物学参数及种群增长的影响

作  者：
王前进;党聪;方琦;叶恭银
单  位：
浙江大学昆虫科学研究所/水稻生物学国家重点实验室/农业部农业昆虫学重点实验室
关键词：
水稻矮缩病毒;黑尾叶蝉;生物学参数;生命表;种群增长
摘  要：
【目的】水稻矮缩病毒(RDV)是水稻普通矮缩病的病原。该病害主要依赖于黑尾叶蝉经卵以持久增殖方式传播,危害水稻。本研究旨在明确RDV对黑尾叶蝉存活、发育、繁殖和种群增长的影响,分析病毒对介体昆虫的间接影响。【方法】采用室内实验比较了黑尾叶蝉在健康水稻及感病水稻上的发育繁殖情况,组建了实验种群生命表,并调查了RDV对种群增长的影响。【结果】与健康水稻相比,感病水稻上叶蝉若虫期存活率更高,雌若虫发育历期显著缩短,雄成虫寿命显著延长,产卵量显著增加,其他生物学参数无显著差异。五个生命表参数仅净生殖率(R_0)存在显著差异,感病水稻上叶蝉R_0显著高于健康水稻。饲喂感病水稻的养虫笼内叶蝉种群增长更快,总成虫数量更多,在接虫后的第4、5和6月显著高于健康水稻上的数量。【结论】水稻矮缩病毒可以提高黑尾叶蝉的存活率和产卵量,并促进种群的增长。
译  名：
Influence of Rice dwarf virus on Biological Parameters and Population Growth of Vector Insect Nephotettix cincticeps(Uhler)(Hemiptera: Cicadellidae)
作  者：
WANG Qianjin;DANG Cong;FANG Qi;YE Gongyin;State Key Laboratory of Rice Biology/Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture/Institute of Insect Sciences, Zhejiang University;
关键词：
Rice dwarf virus;;Nephotettix cincticeps(Uhler);;biological parameter;;life table;;population growth
摘  要：
【Objective】The rice dwarf virus(RDV), a phytoreovirus in the family Reoviridae, is the pathogeny of rice dwarf virus disease. RDV is mainly transmitted by green rice leafhoppers, Nephotettix cincticeps(Uhler)(Hemiptera: Cicadellidae), in a persistent-propagative manner and is transovarially transmitted to offspring and caused great decreases to rice yields. Our aim is to study the effects of RDV on leafhoppers survival, development, reproduction and population growth, and to explore the "double" damage mechanism by RDV and vector green rice leafhoppers and finally to reveal the mechanism within the tritrophic relationship.【Method】We compared the biological parameters of the green rice leafhoppers on RDV-infected and non-infected rice plants, life table of experimental population of leafhopper was established. We also analyzed the influence of RDV on green rice leafhoppers population growth.【Result】Compared with healthy rice plants, female nymphal duration was significantly shorter, nymph survival, male adult longevity and fecundity were significantly longer/higher on RDV-infected rice plants. Other biological parameters were not largely affected. Among the five life table parameters, only net reproductive rates(R_0) was significantly affected, it was largely higher on RDV-infected rice plants compared with healthy rice plants. The green rice leafhopper population grew faster on RDV-infected rice plants and the total number of adults was significantly higher than healthy rice plants at the 4 th, 5 th and 6 th month after inoculation.【Conclusion】RDV could enhance survival rate, fecundity and accelerate population growth of green rice leafhoppers.

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