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3. Migration and Thermotaxis
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2. Spiral Breakup
Contents
Part II
Morphogenesis of
Dictyostelium discoideum
Subsections
3. Migration and Thermotaxis of
Dictyostelium discoideum
Slugs, a Model Study
3.1 Introduction
3.2 The Model
3.2.1 Description of the amoebae
3.2.2 cAMP dynamics
3.2.3 Chemotaxis
3.3 Slug Migration
3.3.1 Stability of the slug shape
3.3.2 Motion velocity
3.3.3 Cell sorting
3.4 Thermotaxis
3.4.1 Mechanism of thermosensitivity
3.4.2 Thermosensitivity and the influence of stochastic noise
3.4.3 A partially thermosensitive slug
3.5 Discussion
3.5.1 Slug motion and cell sorting
3.5.2 Thermotaxis
Acknowledgements
4. Phototaxis during the Slug Stage of
Dictyostelium discoideum
: a Model Study
4.1 Introduction
4.2 The Model
4.3 Phototaxis
4.4 Discussion
4.5 Conclusions and Predictions
Acknowledgements
Colour Plates
5. How Slime Moulds Self-Organise into a Fruiting Body: the ``Reverse Fountain'' Explained
5.1 Introduction
5.2 The Model
5.3 Results
5.4 Discussion
Appendix
5.5 Methods
Acknowledgements
6. Modelling
Dictyostelium discoideum
Morphogenesis: the Culmination
6.1 Introduction
6.1.1 Stalk formation
6.1.2 Cell differentiation
6.1.3 Cell movements
6.2 The Model
6.2.1 Adhesion
6.2.2 Cell differentiation
6.2.3 cAMP signalling
6.2.4 Initial condition
6.3 The Culmination of
Dictyostelium discoideum
6.3.1 Tube formation
6.3.2 Stalk elongation
6.3.3 The role of cAMP and pathfinder cells in stalk elongation
6.3.4 Correction of orientation
6.3.5 Anchoring
6.3.6 Final configuration
6.3.7 Cell adhesion
6.4 Discussion
6.4.1 Stalk formation
6.4.2 cAMP signalling
6.4.3 Model considerations
6.4.4 Side-effects
6.4.5 Conclusions
Acknowledgements
7. Summarising Discussion
7.1 A Short Review
7.2 From Local Interactions towards Global Coordination
7.3 Model Complexity
7.3.1 From simple to simpler, to a little more complex
7.3.2 Interaction of generic modules
and interesting new observables
7.3.3 Gene regulation and morphogenesis
7.3.4 Evolving complexity
7.4 Future Directions
7.5 Conclusion
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3. Migration and Thermotaxis
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2. Spiral Breakup
Contents
