VIII
Contents
3
Chlorophyll Fluorescence as a Nonintrusive Indicator
for Rapid Assessment of In Vivo Photosynthesis
49
U. Schreiber, W. Bilger, and C. Neubauer
3.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
49
3.2 Indicator Function of Chlorophyll Fluorescence .......
50
3.3 Rapid Fluorescence Induction Kinetics ...............
51
3.4 Slow Fluorescence Induction Kinetics and Fluorescence
Quenching Under Steady-State Conditions ...........
54
3.5 The Saturation Pulse Method ......................
55
3.6 Quantum Yield and Rate Determination
by Fluorescence Measurements ......................
56
3.7 Fluorescence as an Indicator of Nonassimilatory
Electron Flow ....................................
58
3.8 In Situ Measurements of L1FIF:n
and of Relative Electron Transport Rate .............
62
3.9 Yield Limitation and Excessive Photon Flux Density ..
64
3.10 Conclusions ......................................
66
References .......................................
67
4
Higher Plant Respiration and Its Relationships
to Photosynthesis .................................
71
1.S. Amthor
4.1 Introduction ..................................... .
4.2 Pathways and Controls of Respiration .............. .
4.2.1 Unique Properties of Plant Respiration
and Mitochondrial Metabolism .................... .
4.2.2 Control of Respiration Rate ....................... .
4.2.3 Energy Conservation During Plant Respiration ...... .
4.2.4 Respiration Rate and Carbohydrate Level ............ .
4.3 Respiration in Photosynthesizing Leaves ............ .
4.4 Photorespiration and Mitochondrial Metabolism ..... .
4.4.1 Oxidation of Photorespiratory NADH
by the Respiratory Chain ......................... .
4.4.2 Oxidation of Photorespiratory NADH
via Substrate Shuttles ............................. .
4.5 Daytime Photosynthesis and Nighttime Respiration ... .
4.5.1 Light Level ...................................... .
4.5.2 CO 2 Concentration ............................... .
4.6 Photosynthesis and Root Respiration ............... .
4.7 Conclusions ..................................... .
Appendix ....................................... .
References ...................................... .
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