| 一些因子对七星瓢虫咽侧体活性的影响(英文) |
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| 引用本文： | 关雪辰,王宗舜.一些因子对七星瓢虫咽侧体活性的影响(英文)[J].Entomologia Sinica,1995(1). |
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| 作者姓名： | 关雪辰 王宗舜 |
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| 作者单位： | 中国科学院动物研究所 北京100080 |
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| 摘 要： | 七星瓢虫(Coccmella septimpunctata)为了适应环境的变化,通过咽侧体产生保幼激素的活动调节其生殖作用。为了探索内外因素对咽侧体活动的影响,应用放射化学法及免疫电泳测定了食物、卵巢发育、脑神经肽、保幼激素类似物对卵黄发生期成虫保幼激素生物合成及血淋巴中卵黄原蛋白含量的影响。结果表明咽侧体活性受上述各种因子的影响。咽侧体活性与卵黄原蛋白含量及卵母细胞生长密切相关,说明有反馈作用。食物的质与量影响着咽侧体活性的变化。低剂量外源保幼激素类似物处理成虫则可促使咽侧体活性的变化。脑分泌的神经肽(allatotropin)可活化咽侧体。这些结果表明雌瓢虫保幼激素的生产主要是受起源于脑的促咽侧体信号的调节作用。
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FACTORS AFFECTING CORPORA ALLATA ACTIVITY IN THE ADULT LADY BEETLE COCCINELLA SEPTEMPUNCTATA L. |
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| Authors: | Xuechen Guan and Zongshun WangInstitute of Zoology Academia Sinica Beijing China |
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| Institution: | Xuechen Guan and Zongshun WangInstitute of Zoology,Academia Sinica,Beijing 100080,China |
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| Abstract: | Corpora allata are the defined site of juvenile hormone (JH) biosynthesis in reproductive adult insects and their activity is regulated by intrinsic and extrinsic factors. In the adult lady beetle Coccinella septempunctata. it has been well established that the development of ovaries is controlled by JH (Guan 1987). The present study aims at the elucidation of the influence of some factors regulating reproduction of the lady beetle. They include topical application of JH analogues, presence of neuropeptides in the extract from the brain, as well as the development of ovary and type of food on CA activity. JH synthesis in CA is monitored with radiochemical assay and immunoelectrophoresis. |
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| Keywords: | corpora allata juvenile hormone allatotropic factor radiochemical assay |
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