THEORETICAL CONSIDERATIONS WHEN ESTIMATING THE MESOPHYLL CONDUCTANCE TO CO2 FLUX BY ANALYSIS OF THE RESPONSE OF PHOTOSYNTHESIS TO CO2
THEORETICAL CONSIDERATIONS WHEN ESTIMATING THE MESOPHYLL CONDUCTANCE TO CO2 FLUX BY ANALYSIS OF THE RESPONSE OF PHOTOSYNTHESIS TO CO2
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DOI：
10.1104/pp.98.4.1429
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发表时间：
1992-04-01
期刊：
影响因子：
7.4
通讯作者：
SHARKEY, TD
中科院分区：
文献类型：
--
作者：
HARLEY, PC;LORETO, F;SHARKEY, TD
叶子叶肉中二氧化碳扩散的电导会限制光合作用。 我们研究了两种确定叶子中二氧化碳扩散的叶肉导度的方法。 我们在基质中一系列 CO2 分压下生成了一组理想的光合作用速率，并研究了改变叶肉扩散电导对光合作用对细胞间 CO2 分压的测量响应的影响。 我们使用理想的数据集来测试两种方法对用于确定叶肉电导的参数的小误差的敏感性。 这两种方法还用于使用测量数据集而不是理想数据集来确定几片叶子的叶肉电导率。 结论是这两种方法都可以用来测定叶肉电导率，并且每种方法都有其特定的优点。 我们相信这两种方法在未来都会被证明是有用的。
The conductance for CO2 diffusion in the mesophyll of leaves can limit photosynthesis. We have studied two methods for determining the mesophyll conductance to CO2 diffusion in leaves. We generated an ideal set of photosynthesis rates over a range of partial pressures of CO2 in the stroma and studied the effect of altering the mesophyll diffusion conductance on the measured response of photosysnthesis to intercellular CO2 partial pressure. We used the ideal data set to test the sensitivity of the two methods to small errors in the parameters used to determine mesophyll conductance. The two methods were also used to determine mesophyll conductance of several leaves using measured rather than ideal data sets. It is concluded that both methods can be used to determine mesophyll conductance and each method has particular strengths. We believe both methods will prove useful in the future.