Paenibacillus dendritiformis bacterial colony growth depends on surfactant but not on bacterial motion.
J Bacteriol
; 191(18): 5758-64, 2009 Sep.
Article
en En
| MEDLINE
| ID: mdl-19617369
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.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Tensoactivos
/
Bacilos Grampositivos Formadores de Endosporas
Idioma:
En
Revista:
J Bacteriol
Año:
2009
Tipo del documento:
Article
País de afiliación:
Estados Unidos