| 昆虫的生物测时机构 |
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| 引用本文： | 徐世清,郑必平.昆虫的生物测时机构[J].常熟理工学院学报,2000,14(4):56-61. |
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| 作者姓名： | 徐世清 郑必平 |
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| 作者单位： | 苏州大学蚕丝生物技术实验室!苏州215151 |
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| 摘 要： | 生物测时是昆虫的基本生理功能。昆虫测时功能及作用机制的研究是时间生物学前沿研究内容之一。光感应型昆虫生物钟光信号由眼、脑－眼两种感知类型，驱动部位也有视叶边缘腹侧部分的细胞体和脑两类；遗传控制基因是ｐｅｒ，不同突变体ｐｅｒＤＮＡ之间仅有１个碱基的差异。家蚕卵内的酯酶Ａ４（ＥＡ４）是一种时间间隔测定酶，感知低温、盐酸刺激等信息，启动倒计时型滞育生物钟光ＥＡ４的测时功能与自身的结构有关，受蚕卵内的多肽
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| 关 键 词： | 昆虫 生物钟 测时机构 |
Mechanism of insect biological clock |
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| XU Shi_qing,ZHENG Bi_ping.Mechanism of insect biological clock[J].Journal of Changshu Institute of Technology,2000,14(4):56-61. |
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| Authors: | XU Shi_qing ZHENG Bi_ping |
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| Abstract: | Biological clock was the primary physiological function for insect.Study on function and mechanism of biological clock was one of time_biology frontiers.For the light_sensed biological clock,there were eye and eye_brain,two kinds of sensibility to light,and brain and cells on the flank of optic lobes'edge,two kinds of driving parts,and the hereditary gene was p er ,there was only a base different among different mutants of p er DNA.The esterase A4(EA 4) was a kind of time_interval determining enzyme in silkworm eggs,which could sense low temperature and hydrochloric acid stimilus and switch on biological clock.The time_interval determining function of EA4 had relations with it structure and was controlled by Peptide Inhibitory Needle(PIN) in silkworm eggs. |
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| Keywords: | insect biological clock structure time determining mechanism |
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