Present address: Vascular Biology Laboratory, London Research Institute, Cancer Research UK, Lincoln’s Inn Fields, London, WC2A 3LY, UK.
DIATOM COLONY FORMATION: A COMPUTATIONAL STUDY PREDICTS A SINGLE MECHANISM CAN PRODUCE BOTH LINKAGE AND SEPARATION VALVES DUE TO AN ENVIRONMENTAL SWITCH1
Article first published online: 15 MAY 2012
© 2012 Phycological Society of America
Journal of Phycology
Volume 48, Issue 3, pages 716–728, June 2012
How to Cite
Bentley, K., Clack, C. and Cox, E. J. (2012), DIATOM COLONY FORMATION: A COMPUTATIONAL STUDY PREDICTS A SINGLE MECHANISM CAN PRODUCE BOTH LINKAGE AND SEPARATION VALVES DUE TO AN ENVIRONMENTAL SWITCH. Journal of Phycology, 48: 716–728. doi: 10.1111/j.1529-8817.2012.01176.x
Received 3 February 2011. Accepted 7 November 2011.
- Issue published online: 1 JUN 2012
- Article first published online: 15 MAY 2012
- Accepted manuscript online: 7 APR 2012 11:15AM EST
- colony formation;
- computer simulation;
- environmental switch;
- linkage valves;
- separation valves
The morphological plasticity and adaptive behavior exhibited during diatom colony formation in Aulacoseira is explored through computer simulation to study how the interplay of mechanisms such as cytoskeletal-driven membrane protrusions, silica deposition, and environmental factors may contribute to the generation of two distinct spine morphologies on linkage and separation valves. A multiscale agent-based computational model was developed, which showed that a single cytoskeleton-driven, competitive growth mechanism could generate either of the two characteristic phenotypes, given only a single switch in the environment (as might be experienced by a change in light regime). Hypotheses are formulated from the model, and predictions made for potential follow-up experiments.