A new photosynthetic pigment, "P430": its possible role as the priary electron acceptor of photosystem I.
A new photosynthetic pigment, "P430": its possible role as the priary electron acceptor of photosystem I.
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一种新型光合色素“P430”：其作为光系统I的主要电子受体的可能作用。
DOI：
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发表时间：
1971
影响因子：
11.1
通讯作者：
B. Kê
中科院分区：
文献类型：
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作者：
T. Hiyama;B. Kê
使用闪光动力学分光光度法技术证明了菠菜和蓝绿藻的几种光系统-I 颗粒中 430 nm 附近的宽吸收带，该吸收带在动力学上与 P700 不同。该吸收带代表的组分被指定为“P430”，其漂白速度与P700一样快。铁氧还蛋白和氧化还原电位低至-521 mV的各种人造电子受体加速了它在黑暗中的恢复。恢复动力学已被证明与所使用的几种人造电子受体的伴随还原动力学相同。暂时，“P430”被提议作为光系统 I 的可能的初级电子受体。
The technique of flash kinetic spectrophotometry was used to demonstrate a broad absorption band around 430 nm, which was kinetically different from P700, in several photosystem-I particles from spinach and blue-green algae. The component represented by this absorption band, designated as "P430", was bleached as fast as P700. Its recovery in the dark was accelerated by ferredoxin and by various artificial electron acceptors with redox potentials as low as -521 mV. The recovery kinetics have been demonstrated to be identical to those of a concomitant reduction of several of the artificial electron acceptors used. Tentatively, "P430" has been proposed as a possible primary electron acceptor of photosystem I.