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Paenibacillus dendritiformis bacterial colony growth depends on surfactant but not on bacterial motion
- Source :
- Journal of Bacteriology. Sept, 2009, Vol. 191 Issue 17-18, p5758, 7 p.
- Publication Year :
- 2009
-
Abstract
- Most research on growing bacterial colonies on agar plates has concerned the effect of genetic or morphotype variation. Some studies have indicated that there is a correlation between microscopic bacterial motion and macroscopic colonial expansion, especially for swarming strains, but no measurements have been obtained for a single strain to relate the microscopic scale to the macroscopic scale. We examined here a single strain (Paenibacillus dendritiformis type T; tip splitting) to determine both the macroscopic growth of colonies and the microscopic bacterial motion within the colonies. Our multiscale measurements for a variety of growth conditions revealed that motion on the microscopic scale and colonial growth are largely independent. Instead, the growth of the colony is strongly affected by the availability of a surfactant that reduces surface tension.
Details
- Language :
- English
- ISSN :
- 00219193
- Volume :
- 191
- Issue :
- 17-18
- Database :
- Gale General OneFile
- Journal :
- Journal of Bacteriology
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.208887841