Gas Exchange: Models and Measurements

  • John M. Cheeseman
  • Matej Lexa
Part of the Advances in Photosynthesis and Respiration book series (AIPH, volume 5)


In this chapter, we use mathematical models of C3, photosynthesis from the chloroplast to the leaf level to consider the relationships between photosynthetic capacity and performance. The differences must reflect regulation of chloroplast processes under the influence of environmental limitations. Thus, we examine the means by which models handle regulation of individual processes and identify five critical areas of uncertainty. These are: stomatal interactions, mesophyll conductance, Rubisco activation, ribulose 1,5-bisphosphate regeneration and photoprotection. Each is discussed both with regard to modeling efforts which have been made, and experimental results which are yet to be fully assimilated. In all five cases, control is clearly dynamic, not static, and we note several areas in which current methods of data interpretation insufficiently take this into account.

Finally, we return to the problem of data collection and interpretation under field conditions. We note the essentiality of merging the goals of experimental science with those of modeling. In this way, critical data will be available and used in formalizing future models of photosynthesis, and its biochemical and environmental regulation.


Stomatal Conductance Plant Cell Environ Rubisco Activity Carboxylation Efficiency Biochemical Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • John M. Cheeseman
    • 1
  • Matej Lexa
    • 1
  1. 1.Department of Plant BiologyUniversity of IllinoisUrbanaUSA

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