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首页> 外文期刊>Zoological Science >Acceleration of pupal-adult development by fenoxycarb in the silkworm,Bombyx mori
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Acceleration of pupal-adult development by fenoxycarb in the silkworm,Bombyx mori

机译：苯氧威在家蚕体内加速小up成虫的发育

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摘要

Treatment by fenoxycarb (> 0.1 mug/animal) during a short developmental period in the pharate pupal stage of the silkworm, Bombyx mori, induced alterations in the normal pupal-adult development. All fenoxycarb-treated animals showed accelerated development and precocious adult cuticle deposition very early in the pupal stage. Various internal and external organs of the developing adults underwent abnormal differentiation and were extensively malformed. Consequently, pupal-adult development and adult eclosion behaviour were disturbed. Similar effects were induced by injections of high doses (greater than or equal to 4 mug/animal) of 20-hydroxyecdysone (20E) only around the time of pupal ecdysis. Treatment with 1 mug of fenoxycarb in the pharate pupal stage did not affect haemolymph ecdysteroid titers early in the pupal stage. Our results, therefore, suggest that fenoxycarb, a potent juvenile hormone mimic, can imitate the developmental effects of excess 20E and behave as an ecdysteroid mimic after its application during the short developmental period of the pharate pupal stage of B. mori. These results shed light on the timely and coordinated increase of endogenous juvenile hormone titer before pupal ecdysis.
机译：在家蚕的pha期阶段的短发育期中，用苯氧威（> 0.1杯/动物）进行处理，可导致正常p发育的改变。在幼虫期的早期，所有用苯氧威处理的动物都表现出加速的发育和早熟的成年表皮沉积。发育中的成年人的各种内部和外部器官经历异常分化，并严重畸形。因此，p成人的发育和成年的性行为会受到干扰。仅在up蜕膜化前后才注射高剂量（大于或等于4马克杯/动物）的20-羟基蜕皮激素（20E）会引起类似的效果。在杯状p期用1杯苯氧威进行治疗不会影响early期早期的血淋巴蜕皮类固醇滴度。因此，我们的结果表明，一种有效的幼年激素模拟药苯氧威可以模仿过量的20E的发育作用，并在家蚕乙肝小p期的短发育期应用后，表现为蜕皮类固醇模拟物。这些结果为p蜕变之前内源性幼体激素效价的及时协调提高提供了依据。

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