呼吸作用导致净光合作用下降。
Decrease in net photosynthesis caused by respiration.
作者信息
Bravdo B A
机构信息
The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504.
出版信息
Plant Physiol. 1968 Apr;43(4):479-83. doi: 10.1104/pp.43.4.479.
Abstract
CO(2) exchange between air and leaf is conceived as a current along a resistor with a respiratory current, unaffected by CO(2) concentration, entering the resistor. The conclusion follows that a plant placed in an atmosphere free of CO(2) will increase the CO(2) concentration to the compensation concentration along a curve determined by the resistor and the volume of the atmosphere. This was verified. Also a photosynthesis rate calculated from the parameters of the observed curve agreed with an independent observation of photosynthesis in CO(2)-free air. The decrease in net photosynthesis caused by respiration is, according to the model, the CO(2) compensation concentration divided by the concentration in the atmosphere.
摘要
空气与叶片之间的二氧化碳交换被设想为一股电流沿着一个电阻器流动，同时有一股不受二氧化碳浓度影响的呼吸电流进入该电阻器。由此得出结论，置于无二氧化碳大气中的植物会沿着由电阻器和大气体积所确定的曲线将二氧化碳浓度提高到补偿浓度。这一点得到了验证。此外，根据观测曲线参数计算出的光合速率与在无二氧化碳空气中对光合作用的独立观测结果相符。根据该模型，呼吸作用导致的净光合作用下降是二氧化碳补偿浓度除以大气中的浓度。
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本文引用的文献
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