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[高等植物光合系统中电子传递的电子顺磁共振研究。I. 光照预处理对P700光诱导氧化还原转变动力学的影响]

[EPR study of electron transport in higher plant photosynthetic systems. I. Effect of illumination prehistory on the kinetics of photoinduced oxidation-reduction transformations of P700].

作者信息

Tikhonov A N, Ruuge E K

出版信息

Biofizika. 1975 Nov-Dec;20(6):1049-53.

PMID:173408
Abstract

After the adaptation of leaves to darkness (2--4 min) the kinetics of the initiation of ESR I signal aquires a multiphase character: after an initial leap the stage of slower growth sets in. The "memory" of the system about the effect of light of 600 nm, which was realized as a delay of the growth of the ESR I signal under the effect of light of 707 nm, was preserved in the darkness for several minutes. If the light of 600 nm is switched on at the background of the light of 707 nm not earlier than 2-4 min after its switching off in the preceding cycle, unmonotonous transitional process with an overleap is observed.

摘要

叶片适应黑暗(2 - 4分钟)后,ESR I信号起始的动力学呈现多相特征:在初始跃升之后进入较慢增长阶段。系统对600 nm光效应的“记忆”,表现为在707 nm光作用下ESR I信号增长的延迟,在黑暗中保留了几分钟。如果在707 nm光在前一周期关闭后不早于2 - 4分钟的背景下开启600 nm光,会观察到带有跃升的非单调过渡过程。

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