CONTENTS 1>^ 



PART FOUR— KINETICS OF PHOTOSYNTHESIS 



Page 



Introduction ^^^ 



Chap. 25. Methods of Kinetic Measurements 833 



1. Material 833 



2. Light Measurements 837 



3. Measurements of Oxygen Evolution 844 



4. Measurements of Carbon Dioxide Consumption 851 



5. Measurements of Carbohydrate Production and Energy Con- 

 version °'^'^ 



6. Application of Isotopic Indicators 854 



Bibliography 855 



Chap. 26. External and Internal Factors in Photosynthesis 858 



1. The "Cardinal Points" and the "Luniting Factors" 858 



2. Photosynthesis Not a Homogeneous Reaction 864 



3. Some General Kinetic Considerations 866 



(a) Sources of Saturation in Photosynthesis 866 



(b) Origin of Kinetic Curve Systems of Different Types 868 



4. Internal Factors and the "Physiological Concept" of Photo- 

 synthesis 8< 2 



5. Rate of Photosynthesis under Constant Conditions. Midday 

 Depression and Adaptation Phenomena 873 



6. Aging and Self-Inhibition 880 



Bibhography ^^ 



Chap. 27. Concentration Factors 886 



A. Experimental Carbon Dioxide Curves 886 



1. Carbon Dioxide Molecules and Carbonic Acid Ions 886 



2. General Review of Carbon Dioxide Curves 891 



3. Carbon Dioxide Compensation Point 898 



4. Carbon Dioxide Fertilization and Inhibition 901 



5. External Supply and Exhaustion Effects 903 



6. Role of the Stomata 910 



7. Interpretation of Carbon Dioxide Curves 916 



(a) The Carboxylation Equilibrium 917 



(b) Diffusion Factors 921 



(c) Slow Carboxylation 924 



(d) Nondissociable ACO2 Compound. The Franck-Herzfeld 

 Theory 927 



(e) Back Reactions in the, Photosensitive Complex 930 



(f) Acceptor "Blockade" • 933 



(g) Calculation of Carboxylation Constant from Carbon Di- 

 oxide Curves 934 



(h) Are Experimental Carbon Dioxide Curves Hyperbolic? 937 



B. Carbon Dioxide Concentration and Fluorescence 939 



C. Concentration of Reductants 943 



1. Effect on Rate of Carbon Dioxide Reduction in Bacteria 943 



2. Effect on Yield of Fluorescence 949 



