海氏桨角蚜小蜂和浅黄恩蚜小蜂雌性生殖系统的解剖结构  

Female Reproductive System of Eretmocerus hayati (Zolnerowich & Rose) and Encarsia sophia (Girault & Dodd),Parasitoids of Bemisia tabaci (Gennadius)

作　　者：冀禄禄[1,2] 杨念婉[2] 万方浩[2] 李照会[1] 

机构地区：[1]山东农业大学,泰安271018 [2]中国农业科学院植物保护研究所/植物病虫害生物学国家重点实验室,北京100193

出　　处：《中国生物防治学报》2012年第3期303-307,共5页Chinese Journal of Biological Control

基　　金：国家自然科学重点基金(30930062);公益性行业(农业)科研专项(201103023);国家重点基础研究发展计划项目(2009CB119200)

摘　　要：首次对烟粉虱的寄生蜂海氏桨角蚜小蜂Eretmocerus hayati(Zolnerowich&Rose)和浅黄恩蚜小蜂Encarsia sophia(Girault&Dodd)的雌性生殖系统结构进行了研究。两种小蜂的卵巢均由6条卵巢管构成,雌蜂羽化后卵巢内有部分成熟卵,而羽化后24 h的成熟卵量较羽化后6 h有所增加,两种寄生蜂均是同步卵(synovigenic)类寄生蜂;海氏桨角蚜小蜂羽化6 h和24 h后体内成熟卵的数量均显著高于浅黄恩蚜小蜂,这与海氏桨角蚜小蜂24 h雌蜂的寄生量显著高于浅黄恩蚜小蜂,而寄主取食量却低于浅黄恩蚜小蜂的结果一致。Reproductive organ structures of Eretmocerus hayati （Zolnerowich ＆ Rose） and Encarsia sophia （Girault ＆ Dodd）, parasitoids of Bemisia tabaci （Gennadius）, were described in this paper. Both parasitoid females have two ovaries, each consisting of three ovarioles. Mature ova could be observed in the ovaries of 6 h-old females and the number of mature ova increased in 24 h-old females, indicating that these two parasitoids were synovigenic parasitoids. Moreover, the number of mature ova in Er hayati was higher than that in En. sophia whether the female was 6 or 24 h-old. The results were coincident with what we found in oviposition experiment that the 24 h-old Er. hayati female parasitized more hosts than En. sophia, but fed less.

关 键 词：海氏桨角蚜小蜂 浅黄恩蚜小蜂 烟粉虱 卵巢结构 同步卵寄生蜂 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]