Microbial Siderophores (eBook)

Preface 6
Contents 8
Contributors 13
Fungal Siderophores: Structure, Functions and Regulation 16
1.1 Introduction 16
1.2 Siderophores 23
1.3 Functions of Siderophores 41
1.4 Siderophores as Pathogenic Factor 42
1.5 Agricultural Interest 44
1.6 Utilization of Siderophores by Nonproducers 44
1.7 Acidification and Mobilization 45
1.8 Piriformospora indica and Siderophore 46
1.9 Methods to Characterize Siderophore 47
1.10 Conclusions 49
References 50
Siderotyping and Bacterial Taxonomy: A Siderophore Bank for a Rapid Identification at the Species Level of Fluorescent and Non- Fluorescent Pseudomonas 58
2.1 Introduction 58
2.2 Siderophores of Pseudomonas 59
2.3 Siderotyping Methods 61
2.4 Siderotyping as a Powerful Tool for the Search of New Siderophores 69
2.5 Siderotyping as a Powerful Tool for Pseudomonas Taxonomy and Phylogeny 69
2.6 Siderotyping and Environmental/Ecological Microbiology 71
2.7 Raising a Pyoverdine Bank Based on IEF Patterns 72
2.8 Conclusions 75
References 76
Siderotyping, a Tool to Characterize, Classify and Identify Fluorescent Pseudomonads 81
3.1 Introduction 81
3.2 Siderophore Specificity 82
3.3 Siderotyping Methods 83
3.4 Siderophores of Fluorescent Pseudomonads 85
3.5 Conclusions 95
References 95
Siderophores of Symbiotic Fungi 104
4.1 Introduction 104
4.2 Fungi Forming Mutualistic Symbioses with Plants 105
4.3 Outlook 110
References 113
Protein-mediated Siderophore Uptake in Gram- negative Bacteria: A Structural Perspective 117
5.1 Introduction 117
5.2 Transport Across the Outer Membrane 119
5.3 Transport Across the Periplasm and Cytoplasmic Membrane 123
5.4 Conclusions 129
References 129
Competition for Iron and Induced Systemic Resistance by Siderophores of Plant Growth Promoting Rhizobacteria 133
6.1 Introduction 133
6.2 Role of Siderophores and Iron- Regulated Compounds in ISR 134
6.3 Conclusions 141
References 142
Pyoverdine Synthesis and its Regulation in Fluorescent Pseudomonads 146
7.1 Introduction 146
7.2 Pyoverdine Genes in Pseudomonas aeruginosa PAO1 148
7.3 Iron Regulation of Pyoverdine Synthesis: The Master Roles of Fur and PvdS 159
7.4 Receptor-dependent Autoregulation of Pyoverdine Synthesis 161
7.5 Conclusions 168
References 168
Implication of Pyoverdines in the Interactions of Fluorescent Pseudomonads with Soil Microflora and Plant in the Rhizosphere 175
8.1 Introduction 175
8.2 Contribution of Pyoverdines to Microbial Interactions in the Rhizosphere 178
8.3 Contribution of Pyoverdines to Plant-Microbe Interactions in the Rhizosphere 188
8.4 Conclusions 193
References 194
Pseudomonas Siderophores and their Biological Significance 203
9.1 Introduction 203
9.2 Pyoverdines 203
9.3 Secondary Siderophores 205
9.4 Conclusion 209
References 210
Microbial Siderophores in Human and Plant Health-Care 214
10.1 Introduction 214
10.2 Microbial Siderophores for Living System/for Health 215
10.3 Iron Nutrition in Plants 218
10.4 Role of Microbial Siderophores in Plant Health 220
10.5 Conclusion 222
References 223
Biotechnological Production of Siderophores 227
11.1 Introduction 227
11.2 Genus Pseudomonas 228
11.3 Siderophores Production in Liquid Culture 229
11.4 Conclusion 234
References 235
Microbial Siderophore: A State of Art 240
12.1 Introduction 240
12.2 Fermentative Production of Siderophores 242
12.3 Media Preparation 242
12.4 Siderophore Production by Bacteria 243
12.5 Siderophore Production by Fungi 245
12.6 Conclusions 246
References 246
Subject Index 250