中国水稻科学2018，Vol.32Issue(1)：89-95,7.DOI:10.16819/j.1001-7216.2018.7090
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
Influence of Rice dwarf virus on Biological Parameters and Population Growth of Vector Insect Nephotettix cincticeps (Uhler) (Hemiptera: Cicadellidae)
摘要
Abstract
[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 (R0) 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 4th, 5th and 6th month after inoculation.[Conclusion]RDV could enhance survival rate, fecundity and accelerate population growth of green rice leafhoppers.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Key words
Rice dwarf virus/Nephotettix cincticeps (Uhler)/biological parameter/life table/population growth分类
农业科技引用本文复制引用
王前进,党聪,方琦,叶恭银..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[J].中国水稻科学,2018,32(1):89-95,7.基金项目
国家973计划资助项目(2014CB138404) （2014CB138404）
国家转基因生物新品种培育重大专项(2016ZX08011-001). （2016ZX08011-001）
