Photosynthetic Unit And Photosystems

Wild, Aloysius & Ball, Raphael

PHOTOSYNTHETIC UNIT AND PHOTOSYSTEMS

Backhuys Publishers, Leiden, 1997

TABLE OF CONTENTS

1 Part A: Early concepts of photosynthesis
1.1 Assimilation theories: photosynthetic function and mechanism 1
1.1.1 Early assimilation theories: basis and historical introduction 1
1.1.2 Concepts of photosynthetic processes and mechanisms until the discovery of the HILL reaction in 1937 3
1.1.3 Early studies on the energy conversion in photosynthesis 10
1.1.4 The theory of the photosynthetic unit 14
1.1.5 Assimilation theories in the context of quantum yield 20
1.1.6 Summary 26
1.2 Structure of chloroplasts and grana 28
1.2.1 Introduction 28
1.2.2 Discoveries in the 1920s and 1930s 29
1.2.3 Achievements in the 1950s 34
1.2.4 Summary 41
1.3 An attempt to relate structure and function: the quantasome hypothesis and the background of a nearly forgotten term 42
1.3.1 Starting conditions 42
1.3.2 The quantasome hypothesis 43
1.3.3 The end of an idea: the quantasome hypothesis in the cross-fire of critique 51
1.3.4 The quantasomes are dead; long live the quantasomes! (Aftermath of a term) 54
1.3.5 Summary 56
2 Part B: New results
2.1 The discovery of the photosystems in the 1960s before a background of various photosynthesis theoriesm 57
2.1.1 Photosynthesis research at the beginning of the 1950s: foundations and open questions leading to photosystem theories 57
2.1.2 The concept of two cooperating photosystems: conditions and foundations 63
2.1.3 The Z scheme of photosynthesis 66
2.1.4 Alternatives to the Z scheme 72
2.1.5 Mutant algae blur the classic picture of photosynthesis 79
2.1.6 Summary 80
2.2 The resurgence of the photosynthetic unit and its modern revision 82
2.2.1 Introduction 82
2.2.2 Doubts about the experimental and theoretical concept of the photosynthetic unit 83
2.2.3 The size of the photosynthetic unit and its variability in aurea plants 85
2.2.4 Dynamics of the photosynthetic unit under different light conditions 92
2.2.5 Changes, differences, and misunderstandings in the definition of the photosynthetic unit 110
3 Part C: A current view of the photosynthetic apparatus
3.1 Understanding the photosystems 127
3.1.1 Introduction 127
3.1.2 The reaction center of purple bacteria 129
3.1.3 Photosystem II core complex 131
3.1.4 Photosystem I core complex 153
3.1.5 PSII type and PSI type reaction centers 169
3.1.6 Reaction center complex of green sulfur bacteria 172
3.1.7 Reaction center complex of heliobacteria 175
3.1.8 Lateral segregation of the two photosystems 180
3.1.9 Light-harvesting antennae in higher plants 183
3.1.10 Light-harvesting complexes of photosynthetic purple bacteria 203
4 Index of names