| Clotrimazole对菠菜叶绿体光合磷酸化和电子传递的抑制作用 |
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| 引用本文： | 魏家绵,李德耀,张鸿龙.Clotrimazole对菠菜叶绿体光合磷酸化和电子传递的抑制作用[J].植物生理与分子生物学学报,1988(3). |
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| 作者姓名： | 魏家绵 李德耀 张鸿龙 |
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| 作者单位： | 中国科学院上海植物生理研究所，中国科学院上海植物生理研究所，中国科学院上海药物研究所 上海 200032，上海 200032，上海 200031 |
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| 摘 要： | 10μmol/的clotrimazole不仅抑制光合磷酸化活力,而且抑制各种类型的电子传递,是一个典型的电子传递抑制剂。经过它对叶绿体放氧,荧光和毫秒延迟发光影响的比较研究表明:clotri—mazole在光合电子传递链上的作用部位在Q与PQ之间,即与DGMU的作用部位相同或相近。
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| 关 键 词： | 光合磷酸化 电子传递抑制剂 光系统Ⅰ 延迟发光 |
The Inhibitory Effect of Clotrimazole on Photophosphorylation and Electron Transport in Chloroplasts of Spinach |
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| WEI Jia-Mian,LI De-Yao.The Inhibitory Effect of Clotrimazole on Photophosphorylation and Electron Transport in Chloroplasts of Spinach[J].Journal Of Plant Physiology and Molecular Biology,1988(3). |
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| Authors: | WEI Jia-Mian LI De-Yao |
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| Institution: | WEI Jia-Mian,LI De-Yao Shanghai Institute of Plant Physiology,Academia Sinica,Shanghai 200032 ZHANG Hong-Long Shanghai Institute of Pharmacology,Academia Sinica,Shanghai 200031 |
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| Abstract: | The inhibitory effect of clotrimazole on
photophosphorylation and electron transport
was studied. The results showed that clotrima-
zole inhibited not only the rate of photophospho-
rylation, but also the rate of electron transport
and O_2 evolution in chloroplasts. The effects
of clotrimazole on ms-delayed light emission and
fluorescence of chloroplasts were very similar
to that of DCMU, but quite different from that
of NH_2OH and DBMIB.
Basing on these, it has been deduced that
the action site of clotrimazole in electron trans-
port chain is the same as or near that of DCMU.
Therefore, clotrimazole is a new inhibitor of
electron transport, which may find special use
in the study of bioenergetics. |
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