Biofilms in plant and soil health. (2017)

• Record Type: Book
• Further Information: Note: Iqbal Ahmad.
• Authors: (Lecturer in agricultural microbiology), Ahmad, Iqbal
• Editors: Aḥmad, Iqbāl; Husain, Fohad Mabood
• Contents: Preface xviii List of Contributors xx 1 Biofilms: An Overview of Their Significance in Plant and Soil Health 1 ; Iqbal Ahmad, Mohammad Shavez Khan, Mohd Musheer Altaf, Faizan Abul Qais, Firoz Ahmad Ansari and Kendra P. Rumbaugh 1.1 Introduction 1 1.2 Biofilm Associated with Plants 3 1.3 Biofilm Formation Mechanisms: Recent Update on Key Factors 4 1.4 Biofilm in Soil and Rhizospheres 7 1.5 Genetic Exchange in Biofilms 7 1.6 Diversity and Function of Soil Biofilms 8 1.7 The Role of Biofilms in Competitive Colonization by PGPR 8 1.8 Biofilm Synergy in Soil and Environmental Microbes 9 1.9 Biofilms in Drought Stress Management 10 1.10 Plant Health and Biofilm 10 1.11 How Microbial Biofilms Influence Plant Health? 10 1.12 Soil Health and Biofilms 12 1.13 How to Assess Soil Health? 13 1.14 Impact of Biofilms on Soil Health 14 1.15 Biofilm EPS in Soil Health 14 1.16 Conclusions and Future Directions 15 References 15 2 Role of PGPR in Biofilm Formations and Its Importance in Plant Health 27 ; Govind Gupta, Sunil Kumar Snehi and Vinod Singh 2.1 Introduction 27 2.2 Rhizosphere: A Unique Source of Microorganisms for Plant Growth Promotion 27 2.3 Plant Growth–Promoting Rhizobacteria 28 2.4 Biofilm Producing Plant Growth–Promoting Rhizobacteria 34 2.5 Role of PGPR in Biofilm Formations 35 2.6 Future Research and Development Strategies for Biofilm Producing Sustainable Technology 35 2.7 Conclusions 36 Acknowledgments 36 References 36 3 Concept of Mono and Mixed Biofilms and Their Role in Soil and in Plant Association 43 ; Janaína J. de V. Cavalcante, Alexander M. Cardoso and Vânia L. Muniz de Pádua 3.1 Introduction 43 3.2 Soil- and Plant-Associated Biofilms 45 3.3 Microbial Signaling, Regulation, and Quorum Sensing 46 3.4 Biotechnology 48 3.5 Outlook 49 Acknowledgments 49 References 49 4 Bacillus Biofilms and Their Role in Plant Health 55 ; Mohd Musheer Altaf, Iqbal Ahmad, Mohd Sajjad Ahmad Khan and Elisabeth Grohmann 4.1 Introduction 55 4.2 Interaction of Bacillus within Plant Rhizosphere and Biofilm Development 57 4.3 Multispecies Biofilms and Their Significance 59 4.4 Biofilm Detection and Characterization 60 4.5 Bacillus Biofilm and Plant Health Promotion 60 4.6 Conclusion and Future Prospects 62 References 63 5 Biofilm Formation by Pseudomonas spp. and Their Significance as a Biocontrol Agent 69 ; Zaki A. Siddiqui and Masudulla Khan 5.1 Introduction 69 5.2 Biofilms 79 5.3 Mechanisms of Biofilm Formation 81 5.4 Metabolites Affecting Biofilm Formation 84 5.5 Biofilm Formation and Biological Control of Plant Diseases 84 5.6 Conclusion 85 References 86 6 Quorum Sensing Mechanisms in Rhizosphere Biofilms 99 ; Jorge Barriuso 6.1 Background 99 6.2 QS in Biofilms Formation 101 6.3 Conclusions 106 References 107 7 Biofilm Formation and Quorum Sensing in Rhizosphere 111 ; Kusum Harjai and Neha Sabharwal 7.1 Introduction 111 7.2 Importance of Rhizosphere 111 7.3 Constituents of Rhizosphere 112 7.4 Communication in Rhizosphere 113 7.5 Quorum Sensing in Rhizobia 115 7.6 Quorum Sensing in Pseudomonads 118 7.7 Biofilm Formation in Rhizosphere 120 7.8 Conclusions 124 References 124 8 The Significance of Fungal Biofilms in Association with Plants and Soils 131 ; Michael W. Harding, Lyriam L.R. Marques, Bryon Shore and G.C. Daniels 8.1 Introduction 131 8.2 What Is a Biofilm? 132 8.3 Where Do We Find Filamentous Fungal Biofilms? 132 8.4 Fungal Biofilms: What Have We Learned from the Budding Yeasts? 133 8.5 What Does a Filamentous Fungal Biofilm Look Like? 134 8.6 Examples of Filamentous Fungal Biofilms 136 8.7 Examples of Fungal Biofilms in Soils and the Rhizosphere 139 8.8 The Mycorhizosphere 141 8.9 A Biofilm Approach to Plant Disease Management 141 References 143 9 Chemical Nature of Biofilm Matrix and Its Significance 151 ; Mohd Sajjad Ahmad Khan, Mohd Musheer Altaf and Iqbal Ahmad 9.1 Introduction 151 9.2 Structural Composition of EPS 154 9.3 Properties of Matrices 160 9.4 Functions of the Extracellular Polymer Matrix: The Role of Matrix in Biofilm Biology 162 9.5 Conclusion 168 Acknowledgments 168 References 169 10 Root Exudates: Composition and Impact on Plant–Microbe Interaction 179 ; Shamsul Hayat, Ahmad Faraz and Mohammad Faizan 10.1 Introduction 179 10.2 Chemical Composition of Root Exudates and Their Significance 180 10.3 Root Exudates in Mediating Plant–Microbe Interaction in Rhizosphere (Negative and Positive Interactions) 180 10.4 Direct and Indirect Effect of Root Exudates on PGPR, Root Colonization, and in Stress Tolerance 182 10.5 Role of Root Exudates in Biofilm Formation by PGPR 185 10.6 Role of Root Exudates in Protecting Plants Pathogenic Biofilm, Quorum Sensing Inhibition 186 10.7 Isolation of Root Exudates 187 10.8 Conclusion 188 References 189 11 Biochemical and Molecular Mechanisms in Biofilm Formation of PlantAssociated Bacteria 195 ; Alwar Ramanujam Padmavathi, Dhamodharan Bakkiyaraj and Shunmugiah Karutha Pandian 11.1 Introduction 195 11.2 Plant-Associated Bacteria 196 11.3 Biofilms and Plant Pathogens 196 11.4 Molecular and Biochemical Mechanisms Involved in Biofilm Formation 197 11.5 Conclusion 205 References 205 12 Techniques in Studying Biofilms and Their Characterization: Microscopy to Advanced Imaging System in vitro and in situ 215 ; Elisabeth Grohmann and Ankita Vaishampayan 12.1 Introduction 215 12.2 Classical Techniques to Study Biofilms 216 12.3 The Gold Standard: Flow-Cell Technology and Confocal Laser Scanning Microscopy (CLSM) 218 12.4 The Biofilm Flow Cell 218 12.5 Advanced Digital Analysis of Confocal Microscopy Images 221 12.6 Biofilm Studies at Different Scales 222 12.7 Conclusions and Perspectives 224 Acknowledgments 225 References 225 13 Gene Expression and Enhanced Antimicrobial Resistance in Biofilms 231 ; Daniel Padilla-Chacón, Israel Castillo-Juárez, Naybi Muñoz-Cazares and Rodolfo García-Contreras 13.1 Introduction 231 13.2 Biofilms in the Plant–Microbe Relationship 232 13.3 Stress Induces Biofilm Formation 236 13.4 Relevance for Bacterial-Associated Plants 237 13.5 Enhanced Antimicrobial Resistance in Biofilms Is Mediated by Biofilm Physicochemical Characteristics and Specific Changes in Gene Expression 237 13.6 Potential for Implementing Antibiofilm Strategies to Protect Crops 239 13.6 Conclusions 244 Acknowledgments 244 References 244 14 In Vitro Assessment of Biofilm Formation by Soil- and Plant-Associated Microorganisms 253 ; Michael W. Harding and G.C. Daniels 14.1 Introduction 253 14.2 How to Make a Biofilm 254 14.3 What Is the Best Way to Make a Biofilm in Vitro? 254 14.4 Flow Systems 255 14.5 Static Reactors 261 14.6 Special Considerations for Filamentous Fungal Biofilms 265 14.7 Biofilm Reactors Used to Characterize Plant-Associated
• Edition: 1st
• Publisher Details: Chichester, West Sussex : Wiley Blackwell
• Publication Date: 2017
• Extent: 1 online resource
• Subjects: 579.1757; Soil microbiology; Biofilms
• Languages: English
• ISBNs: 9781119246374; 9781119246411
• Related ISBNs: 9781119246343
• Notes: Note: Description based on CIP data; resource not viewed.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.