Open AccessDiversity of the growth patterns of Bacillus subtilis colonies on agar plates
Author(s) -
Fujikawa Hiroshi
Publication year - 1994
Publication title -
fems microbiology ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.377
H-Index - 155
eISSN - 1574-6941
pISSN - 0168-6496
DOI - 10.1111/j.1574-6941.1994.tb00062.x
Subject(s) - biology , colony morphology , bacillus subtilis , agar , nutrient agar , agar plate , bacteria , bacillus (shape) , bacillales , microbiology and biotechnology , genetics
A Bacillus subtilis strain showed a variety of colony growth patterns on agar plates. The bacterium grew to a fractal colony through the diffusion‐limited aggregation process, a round colony reminiscent of the Eden model, a colony with a straight and densely branched structure similar to the dence branching, morphology, a colony spreading without any openings, and a colony with concentric rings, on plates with various agar and nutrient concentrations. The microstructures of these colonies were also characteristic and dynamic. The patterns of these bacterial colonies were thought to grow in relation to the diffusion of nutrient in the agar plate.