Rains D W
Science. 1967 Jun 9;156(3780):1382-3. doi: 10.1126/science.156.3780.1382.
The rate of absorption of potassium by slices of corn leaf in the light was about twice the rate in the dark. When the light was turned on or off, changes in the rate of absorption took place some minutes after the change in illumination. Experiments with the antimetabolites, 2,4-dinitrophenol and cyanide, indicated that the source of energy for active accumulation of potassium by green tissue in the light was different from that in the dark. In the light, energy was closely linked to photosynthetic reactions; in the dark, it was linked to respiratory processes.
玉米叶片切片在光照下吸收钾的速率约为黑暗中吸收速率的两倍。当光照开启或关闭时，吸收速率的变化在光照改变几分钟后才发生。用抗代谢物2,4 -二硝基苯酚和氰化物进行的实验表明，绿色组织在光照下主动积累钾的能量来源与黑暗中不同。在光照下，能量与光合作用反应密切相关；在黑暗中，它与呼吸过程相关。
