蝇蛹俑小蜂卵巢发育的研究  

Ovarian development in Spalangia endius Walker(Hymenoptera:Pteromalidae)

作　　者：刘霞[1,2] 吴伟坚 LlU Xia;WU Wei-Jian(Laboratory of Insect Ecology,South China Agricultural University,Guangzhou 510642,China;Key Laboratory Bio-Pesticide Innovation and Application of GuangdongProvince,Guangzhou 510642,China)

机构地区：[1]华南农业大学昆虫生态研究室,广州510642 [2]广东省生物农药创制与应用重点实验室,广州510642

出　　处：《环境昆虫学报》2018年第3期651-656,共6页Journal of Environmental Entomology

基　　金：国家科技支撑计划(2015BAD08B03);公益性行业(农业)科研专项(201103026-4)

摘　　要：对寄生蜂卵巢发育的研究是生理学和生物防治的重要基础。本文研究了从瓜实蝇蛹刚羽化至死亡的蝇蛹俑小蜂雌蜂的卵巢发育。结果表明蝇蛹俑小蜂内生殖系统由1对卵巢、1对侧输卵管、中输卵管、受精囊、受精囊腺等组成,羽化后卵巢迅速发育,卵巢指数从0.34 mm^2增大到0.48 mm^2,卵粒数从37.67增加到42.67。雌蜂发育4 d后,卵巢逐渐萎缩,卵巢指数、卵粒数减少。本研究得出2日龄雌蜂繁殖力最强,对评估蝇蛹俑小蜂品质和放蜂时间有潜在应用价值,使其能在生物防治过程中发挥更大的潜能。The knowledge on ovarian development in parasitoids is important for basic studies on physiology and applied biological control. The ovigeny pattern of the parasitoid Spalangia endius Walker（Hymenoptera： Pteromalidae） females emerged from Bactrocera cucurbitae Coquillett pupae（Diptera：Tephritidae） were studied from newly-emerged to death. The reproductive system of S. endius larvae have a pair of ovaries,lateral collateral tubal,middle fallopian tubes,fertilized sac,and fertilized cysts.The ovaries developed faster that ovarian index from 0. 34 mm^2 to 0. 48 mm^2 after ovulation. The ovary index and fecundity were highest in first two days. Four days after eclosion,ovaries gradually atrophy,ovarian index,the number of eggs decreased. Two-day-old females＇ fecundity was best. This study has a potential value in assessing the quality of S. endius and the time of placing bears,so that it can play a greater potential in the process of biological control.

关 键 词：蝇蛹俑小蜂 卵巢发育 卵巢结构 卵巢指数 

分 类 号：Q965[生物学—昆虫学] S476[农业科学—农业昆虫与害虫防治]