Department of Plant Physiology, University of Umeå, S-901 87, Umeå, Sweden.
Photosynth Res. 1986 Jan;10(1-2):113-23. doi: 10.1007/BF00024190.
In experiments with the unicellular green algae Scenedesmus obliquus a correlation was found between the presence of the CO2-accumulating mechanism and the appearance of polyphasic luminescence decay kinetics. A potentiometric titration method was used to measure and calculate photosynthetic carbon uptake.Polyphasic luminescence decay kinetics was found when the algae showed photosynthetic characteristics typical of algae adapted to low-CO2 conditions. When high-CO2 grown algae were transferred to low-CO2 conditions they gradually developed polyphasic decay kinetics during the first 25-30 minutes. When low-CO2 grown algae were transferred to high-CO2 conditions the polyphasic decay kinetics disappeared. To account for these results a working hypothesis is presented on the basis of the energy requirement for a CO2-accumulating mechanism.
在单细胞绿藻斜生栅藻的实验中，发现 CO2 积累机制的存在与多相发光衰减动力学的出现之间存在相关性。使用电位滴定法测量和计算光合作用碳吸收。当藻类表现出适应低 CO2 条件的藻类的典型光合作用特征时，发现了多相发光衰减动力学。当高 CO2 培养的藻类被转移到低 CO2 条件下时，它们在最初的 25-30 分钟内逐渐发展出多相衰减动力学。当低 CO2 培养的藻类被转移到高 CO2 条件下时，多相衰减动力学消失。为了解释这些结果，根据 CO2 积累机制的能量需求提出了一个工作假设。
