Department of Biology, Queen's University, Kingston, Ontario, Canada.
Plant Physiol. 1969 May;44(5):662-70. doi: 10.1104/pp.44.5.662.
The rate of CO(2) evolution in light by green leaves was determined by 2 methods in a closed system of gas analysis and by measuring the amount of CO(2) evolved into a CO(2) free air stream in an open system. All methods gave similar results under comparable conditions.A light stimulated CO(2) evolution from green leaves was found in all the plant species studied except corn where there was no apparent CO(2) evolution in the light.The magnitude of CO(2) evolution in light was markedly dependent on air flow rate and light intensity. At high light intensity and high flow rate, the rate of CO(2) evolution from green leaves was 1.4 to 1.7 times greater than that in darkness.
采用两种方法在封闭的气体分析系统中以及在开放系统中测量 CO2 向无 CO2 气流中释放的量,对绿叶在光下 CO2 释放率进行了测定。在可比条件下,所有方法均给出了相似的结果。除玉米外,所有供试植物在光下都有 CO2 释放,而玉米在光下没有明显的 CO2 释放。在光下 CO2 的释放量明显取决于空气流速和光强。在高光强和高流速下,绿叶在光下 CO2 的释放速率比黑暗中高 1.4 至 1.7 倍。