EPR study of light‐induced regulation of photosynthetic electron transport in Synechocystis sp. strain PCC 6803
EPR study of light‐induced regulation of photosynthetic electron transport in Synechocystis sp. strain PCC 6803
复制标题
聚胞藻 PCC 6803 菌株光合电子传递的 EPR 研究。
DOI：
10.1016/s0014-5793(03)00429-0
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发表时间：
2003
期刊：
影响因子：
3.5
通讯作者：
A. Tikhonov
中科院分区：
文献类型：
--
作者：
B. Trubitsin;M. Mamedov;L. Vitukhnovskaya;A. Semenov;A. Tikhonov
采用电子顺磁共振方法研究了光系统1 （ps1）初级供体p700在蓝细菌聚囊藻（Synechocystis sp. PCC 6803）全细胞中光诱导氧化还原变化的动力学。结果表明，蓝细菌的线性光合电子传递受两个主要机制控制：(i)由于卡尔文循环反应的激活，电子从PS 1转移到NADP+的氧依赖加速；（ii）由跨膜质子梯度控制的两个光系统之间的电子流阻滞。除了线性光合电子传递外，蓝藻还能够维持PS 1和呼吸链周围循环电子传递的替代途径。
The kinetics of the light-induced redox changes of the photosystem 1 (PS 1) primary donor P700in whole cells of the cyanobacteria Synechocystis sp. PCC 6803 were studied by the electron paramagnetic resonance method. It was shown that the linear photosynthetic electron transport in cyanobacteria was controlled by two main mechanisms: (i) oxygen-dependent acceleration of electron transfer from PS 1 to NADP+due to activation of the Calvin cycle reactions and (ii) retardation of electron flow between two photosystems governed by a transmembrane proton gradient. In addition to the linear photosynthetic electron transport, cyanobacteria were capable of maintaining alternative pathways involving cyclic electron transfer around PS 1 and respiratory chains.
影响因子：
4.3
作者：
Ishida, H;Shimizu, S;Mae, T
通讯作者：
Mae, T