来自盐生盐杆菌干燥定向紫膜的光电信号。
Photoelectric signals from dried oriented purple membranes of Halobacterium halobium.
作者信息
Váró G, Keszthelyi L
出版信息
Biophys J. 1983 Jul;43(1):47-51. doi: 10.1016/S0006-3495(83)84322-7.
Abstract
In dried oriented samples of purple membrane isolated from Halobacterium halobium, the photoelectric activity decreases and the light adaptation vanishes when the water content of the sample is lowered. In the photocycle the first steps of the proton movement were accelerated with decreasing humidity, while the last steps of the photocycle could not be observed. From the analysis of the photoelectric signal we conclude that at low humidities the protons move forward in the L decay and return to their original place during M decay.
摘要
在从嗜盐菌中分离出的紫色膜的干燥定向样品中，当样品的含水量降低时，光电活性降低，光适应消失。在光循环中，质子运动的第一步随着湿度降低而加速，而光循环的最后几步无法观察到。通过对光电信号的分析，我们得出结论，在低湿度下，质子在L衰减过程中向前移动，并在M衰减过程中回到其原始位置。
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