Self-similar colony morphogenesis by gram-negative rods as the experimental model of fractal growth by a cell population.
AUTOR(ES)
Matsuyama, T
RESUMO
The ability to form a fractal colony was shown to be common among several species of the family Enterobacteriaceae. Bacterial spreading growth in a two-dimensional field of nutrient concentration was indicated to be important for this experimental self-similar morphogenesis. As a basic analogy, the diffusion-limited aggregation model was suggested. Fractal dimensions of colonies were mostly in the range of values from 1.7 to 1.8, similar to those of the two-dimensional diffusion-limited aggregation model. Bacterial characteristics and culture conditions inducing changes in fractal patterns and growth rates were identified. The contribution of the bacterial multicellular nature to fractal morphogenesis is discussed.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=195579Documentos Relacionados
- A stochastic model for the self-similar heterogeneity of regional organ blood flow
- Random walks with self-similar clusters
- Demonstration of cell division by septation in a variety of gram-negative rods.
- Self-similar self-avoiding structures: Models for polymers
- Critical evaluation of the AutoMicrobic system gram-negative identification card for identification of glucose-nonfermenting gram-negative rods.