An In Vitro Approach for Investigating the Regulation of the Corpora Allata during Larval-Pupal Metamorphosis
An In Vitro Approach for Investigating the Regulation of the Corpora Allata during Larval-Pupal Metamorphosis
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研究幼虫-蛹变态过程中全体调节的体外方法
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
L. Gilbert
中科院分区：
文献类型：
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作者：
N. Granger;W. Bollenbacher;L. Gilbert
根据现在经典的昆虫变态激素控制方案，昆虫经历的蜕皮类型是由蜕皮前关键时期的保幼激素(JH)浓度决定的(见Gilbert，1964)。一般认为，幼虫的发育是在高浓度的JH存在的情况下发生的，而在中等浓度和可忽略的激素存在的情况下，幼虫的发育分别发生在幼虫和成虫的发育中。对多种全变态昆虫胚胎后发育过程中JH血淋巴滴度的测定倾向于支持这一观点。从逻辑上讲，JH滴度的调节机制包括调节其合成、在血淋巴中的运输、分解代谢和排泄。
According to the now classical scheme for the hormonal control of insect metamorphosis, the type of molt an insect undergoes is determined by the concentration of juvenile hormone (JH) at a critical period before the molt (see Gilbert, 1964). Generally, it is believed that larval development occurs in the presence of high concentrations of JH, and that in the presence of intermediate and negligible concentrations of the hormone, pupal and adult development occur, respectively. Determinations of JH hemolymph titers during the postembryonic development of a wide variety of holometabolous insects have tended to support this idea. Logically, the mechanisms involved in the regulation of the JH titer would involve modulation of its synthesis, its transport in the hemolymph, catabolism and excretion.