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胡 帅, 王小艺*, 杨忠岐, 张彦龙.温度和外源激素对白蜡吉丁肿腿蜂翅型分化的影响[J].植物保护,2020,46(3):52-56.
温度和外源激素对白蜡吉丁肿腿蜂翅型分化的影响
Effects of temperature and exogenous hormones on wing dimorphism of the parasitoid Sclerodermus pupariae (Hymenoptera: Bethylidae)
投稿时间:2019-02-27  修订日期:2019-03-26
DOI:DOI: 10.16688/j.zwbh.2019089
中文关键词:  白蜡吉丁肿腿蜂  温度  早熟素  蜕皮激素  翅型分化
英文关键词:Sclerodermus pupariae  temperature  prococene  ecdyterone  wing dimorphism
基金项目:林业公益性行业科研专项(201404403); 国家自然科学基金(31370654)
作者单位E-mail
胡 帅, 王小艺*, 杨忠岐, 张彦龙 中国林业科学研究院森林生态环境与保护研究所, 国家林业和草原局森林保护学重点实验室, 北京 100091 E-mail:xywang@caf.ac.cn 
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中文摘要:
      为探讨影响寄生蜂翅型分化的环境因素,促进天敌昆虫的利用,在室内比较了白蜡吉丁肿腿蜂Sclerodermus pupariae在21、24、27、30℃和33℃ 5个温度条件下翅型分化情况,并在24℃下通过对该蜂寄主麻竖毛天牛Thyestilla gebleri幼虫注射早熟素Ⅱ和蜕皮激素,比较不同激素处理对寄生蜂子代雌蜂有翅率的影响。研究结果表明,白蜡吉丁肿腿蜂在27℃和30℃下子代雌蜂的有翅率显著高于其他温度,分别高达62.02%和68.04%。24℃下该蜂雌蜂有翅率最低,仅为0.97%,确定24℃为该蜂的无翅型温度Twl。在Twl下早熟素Ⅱ处理寄主幼虫显著提高了寄生蜂子代雌蜂的有翅率(15.62%)。而用3种浓度的蜕皮激素溶液处理寄主幼虫,其育出的寄生蜂子代翅型均无显著分化,蜕皮激素对白蜡吉丁肿腿蜂的翅型分化无显著影响。在对白蜡吉丁肿腿蜂人工繁育过程中,建议将饲养温度设置为30℃来提高该蜂种群的雌蜂有翅率。结合早熟素Ⅱ具有翅化效应的结果,可以对寄主幼虫进行早熟素Ⅱ处理或者直接在幼期处理子代蜂,从而实现对该天敌资源的高效利用。
英文摘要:
      In order to determine the effect of environmental factors on wing dimorphism of parasitoid to enhance efforts to use natural enemy insects, the female winged proportions of Sclerodermus pupariae (Hymenoptera: Bethylidae) were compared at five constant temperature regimes (21, 24, 27, 30, and 33℃) in the laboratory. The wing dimorphism of S.pupariae females resulting from the host Thyestilla gebleri treated with prococene Ⅱ and ecdyterone were investigated at 24℃. The results indicated that the winged female proportions of S.pupariae reared under 27℃ and 30℃ reached up to 62.02% and 68.04%, respectively, and were significantly higher than those at other temperatures. The lowest under 24℃ was only 0.97% and it was determined as the wingless temperature (Twl). The hosts treated with P Ⅱ under Twl could increase the proportion of winged females to 15.62%. Ecdyterone of three concentrations had no effects on wing dimorphism of this parasitoid. It is suggested that the rearing temperature of S.pupariae should be set at 30℃ to increase winged female proportion of this parasitoid. P Ⅱ could induce the production of winged females, and thus we propose that the host be appropriately treated with P Ⅱ or directly treat immature parasitoids with P Ⅱ for higher application efficiency of the natural enemy resources.
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