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Updated: Jul 25, 2026
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Assessment of Dictyostelium discoideum Response to Acute Mechanical Stimulation
Published on: November 9, 2017
Propagating waves control Dictyostelium discoideum morphogenesis
D Dormann1, B Vasiev, C J Weijer
1Department of Anatomy and Physiology, University of Dundee, UK.
Biophysical Chemistry
|July 4, 1998
Summary
Waves guide slime mold development. Propagating waves organize Dictyostelium morphogenesis, transforming cell movement and sorting to create complex structures like slugs and fruiting bodies.
Area of Science:
- Cellular and developmental biology
- Biophysics
- Mathematical biology
Background:
- Dictyostelium morphogenesis involves coordinated cell movement, differentiation, and sorting.
- Cellular aggregation is driven by waves of the chemoattractant cyclic AMP (cAMP).
- The role of waves in organizing multicellular structures beyond initial aggregation was unclear.
Purpose of the Study:
- To investigate the role of propagating waves in organizing Dictyostelium mounds.
- To understand how wave geometry evolves during mound formation.
- To model the interplay between cell sorting and wave dynamics in slug morphogenesis.
Main Methods:
- Observation of wave patterns in Dictyostelium mounds.
- Mathematical modeling of cell sorting based on differential speed and excitability.
- Analysis of wave geometry transitions (spirals to rings).
Main Results:
- Dictyostelium mounds are organized by propagating waves, not just during aggregation.
- Wave patterns transition from spirals to multi-armed spirals and transient rings within mounds.
- Cell sorting, influenced by cell-specific movement and excitability, feeds back to create twisted scroll waves in the slug.
Conclusions:
- Morphogenesis in Dictyostelium is fundamentally directed by wave propagation.
- Wave dynamics play a crucial role in organizing cell sorting and pattern formation.
- This wave-based mechanism explains the development of complex multicellular structures from single cells.
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