Diatom gliding motility. (2021)

• Record Type: Book
• Further Information: Note: Edited by Kalina M. Manoylov, Stanley A. Cohn, Richard Gordon.
• Editors: Manoylov, Kalina; Cohn, Stanley A; Gordon, Richard
• Contents: Preface xxvii 1 Some Observations of Movements of Pennate Diatoms in Cultures and Their Possible Interpretation 1; Thomas Harbich 1.1 Introduction 2 1.2 Kinematics and Analysis of Trajectories in Pennate Diatoms with Almost Straight Raphe along the Apical Axis 3 1.3 Curvature of the Trajectory at the Reversal Points 9 1.4 Movement of Diatoms in and on Biofilms 13 1.5 Movement on the Water Surface 16 1.6 Formation of Flat Colonies in Cymbella lanceolata 23 1.7 Conclusion 29 References 29 2 The Kinematics of Explosively Jerky Diatom Motility: A Natural Example of Active Nanofluidics 33; Ahmet C. Sabuncu, Richard Gordon, Edmond Richer, Kalina M. Manoylov and Ali Beskok 2.1 Introduction 34 2.2 Material and Methods 35 2.2.1 Diatom Preparation 35 2.2.2 Imaging System 35 2.2.3 Sample Preparation 36 2.2.4 Image Processing 36 2.3 Results and Discussion 41 2.3.1 Comparison of Particle Tracking Algorithms 41 2.3.2 Stationary Particles 42 2.3.3 Diatom Centroid Measurements 43 2.3.4 Diatom Orientation Angle Measurements 46 2.3.5 Is Diatom Motion Characterized by a Sequence of Small Explosive Movements? 49 2.3.6 Future Work 50 2.4 Conclusions 51 Appendix 52 References 59 3 Cellular Mechanisms of Raphid Diatom Gliding 65; Yekaterina D. Bedoshvili and Yelena V. Likhoshway 3.1 Introduction 65 3.2 Gliding and Secretion of Mucilage 67 3.3 Cell Mechanisms of Mucilage Secretion 68 3.4 Mechanisms of Gliding Regulation 71 3.5 Conclusions 72 Acknowledgments 72 References 73 4 Motility of Biofilm-Forming Benthic Diatoms 77; Karen Grace Bondoc-Naumovitz and Stanley A. Cohn 4.1 Introduction 77 4.2 General Motility Models and Concepts 86 4.2.1 Adhesion 87 4.2.2 Gliding Motility 89 4.2.3 Motility and Environmental Responsiveness 91 4.3 Light-Directed Vertical Migration 93 4.4 Stimuli-Directed Movement 94 4.4.1 Nutrient Foraging 94 4.4.2 Pheromone-Based Mate-Finding Motility 97 4.4.3 Prioritization Between Co-Occurring Stimuli 99 4.5 Conclusion 99 References 100 5 Photophobic Responses of Diatoms – Motility and Inter-Species Modulation 111; Stanley A. Cohn, Lee Warnick and Blake Timmerman 5.1 Introduction 112 5.2 Types of Observed Photoresponses 112 5.2.1 Light Spot Accumulation 112 5.2.2 High-Intensity Light Responses 114 5.3 Inter-Species Effects of Light Responses 118 5.3.1 Inter-Species Effects on High Irradiance Direction Change Response 119 5.3.2 Inter-Species Effects on Cell Accumulation into Light Spots 123 5.4 Summary 123 References 131 6 Diatom Biofilms: Ecosystem Engineering and Niche Construction 135; David M. Paterson and Julie A. Hope 6.1 Introduction 135 6.1.1 Diatoms: A Brief Portfolio 135 6.1.2 Benthic Diatoms as a Research Challenge 136 6.2 The Microphytobenthos and Epipelic Diatoms 136 6.3 The Ecological Importance of Locomotion 137 6.4 Ecosystem Engineering and Functions 139 6.4.1 Ecosystem Engineering 139 6.4.2 Ecosystem Functioning 140 6.5 Microphytobenthos as Ecosystem Engineers 141 6.5.1 Sediment Stabilization 141 6.5.2 Beyond the Benthos 143 6.5.3 Diatom Architects 144 6.5.4 Working with Others: Combined Effects 144 6.5.5 The Dynamic of EPS 145 6.5.6 Nutrient Turnover and Biogeochemistry 145 6.6 Niche Construction and Epipelic Diatoms 146 6.7 Conclusion 149 Acknowledgments 150 References 150 7 Diatom Motility: Mechanisms, Control and Adaptive Value 159; João Serôdio 7.1 Introduction 159 7.2 Forms and Mechanisms of Motility in Diatoms 160 7.2.1 Motility in Centric Diatoms 160 7.2.2 Motility in Pennate Raphid Diatoms 161 7.2.3 Motility in Other Substrate-Associated Diatoms 162 7.2.4 Vertical Migration in Diatom-Dominated Microphytobenthos 163 7.3 Controlling Factors of Diatom Motility 164 7.3.1 Motility Responses to Vectorial Stimuli 164 7.3.1.1 Light Intensity 164 7.3.1.2 Light Spectrum 165 7.3.1.3 UV Radiation 166 7.3.1.4 Gravity 166 7.3.1.5 Chemical Gradients 167 7.3.2 Motility Responses to Non-Vectorial Stimuli 167 7.3.2.1 Temperature 167 7.3.2.2 Salinity 168 7.3.2.3 pH 168 7.3.2.4 Calcium 168 7.3.2.5 Other Factors 169 7.3.2.6 Inhibitors of Diatom Motility 169 7.3.3 Species-Specific Responses and Interspecies Interactions 169 7.3.4 Endogenous Control of Motility 170 7.3.5 A Model of Diatom Vertical Migration Behavior in Sediments 170 7.4 Adaptive Value and Consequences of Motility 172 7.4.1 Planktonic Centrics 172 7.4.2 Benthic Pennates 173 7.4.3 Ecological Consequences of Vertical Migration 175 7.4.3.1 Motility-Enhanced Productivity 175 7.4.3.2 Carbon Cycling and Sediment Biostabilization 176 Acknowledgments 176 References 176 8 Motility in the Diatom Genus Eunotia Ehrenb. 185; Paula C. Furey 8.1 Introduction 185 8.2 Accounts of Movement in Eunotia 188 8.3 Motility in the Context of Valve Structure 194 8.3.1 Motility and Morphological Characteristics in Girdle View 194 8.3.2 Motility and Morphological Characteristics in Valve View 196 8.3.3 Motility and the Rimoportula 198 8.4 Motility and Ecology of Eunotia 198 8.4.1 Substratum-Associated Environments 199 8.4.2 Planktonic Environments 201 8.5 Motility and Diatom Evolution 202 8.6 Conclusion and Future Directions 203 Acknowledgements 204 References 205 9 A Free Ride: Diatoms Attached on Motile Diatoms 211; Vincent Roubeix and Martin Laviale 9.1 Introduction 211 9.2 Adhesion and Distribution of Epidiatomic Diatoms on Their Host 213 9.3 The Specificity of Host-Epiphyte Interactions 215 9.4 Cost-Benefit Analysis of Host-Epiphyte Interactions 217 9.5 Conclusion 219 References 219 10 Towards a Digital Diatom: Image Processing and Deep Learning Analysis of Bacillaria paradoxa Dynamic Morphology 223; Bradly Alicea, Richard Gordon, Thomas Harbich, Ujjwal Singh, Asmit Singh and Vinay Varma 10.1 Introduction 224 10.1.1 Organism Description 224 10.1.2 Research Motivation 227 10.2 Methods 228 10.2.1 Video Extraction 228 10.2.2 Deep Learning 230 10.2.3 DeepLabv3 Analysis 234 10.2.4 Primary Dataset Analysis 234 10.2.5 Data Availability 235 10.3 Results 235 10.3.1 Watershed Segmentation and Canny Edge Detection 235 10.3.2 Deep Learning 236 10.4 Conclusion 243 Acknowledgments 245 References 245 11 Diatom Triboacoustics 249; Ille C. Gebeshuber, Florian Zischka, Helmut Kratochvil, Anton Noll, Richard Gordon and Thomas Harbich Glossary 249 11.1 State-of-the-Art 251 11.1.1 Diatoms and Their Movement 251 11.1.2 The Navier-Stokes Equation 252 11.1.3 Low Reynolds Number 253 11.1.4 Reynolds Number for Diatoms 254 11.1.5 Further Thoughts About Movement of Diatoms 254 11.1.6
• Edition: 1st
• Publisher Details: Hoboken : Wiley-Scrivener
• Publication Date: 2021
• Extent: 1 online resource
• Subjects: 579.85; Diatoms -- Motility
• Languages: English
• ISBNs: 9781119526575
• Related ISBNs: 9781119526353
• Notes: Note: Description based on CIP data; resource not viewed.
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