[Simplified model of increase in colony diameter during growth of unicellular microorganisms and its use in evaluating the effect of biocides on microbial cells].
A simplified model of increase in colony diameter is proposed. The model uses the size of single cells and several measurements of colony diameter during linear growth for calculating with good approximation the growth curve for the culture from the moment of inoculation. The parameter mu(m)', which is approximately 10% lower than the maximum specific growth rate of the colony biomass, could be also calculated. The effect of copper sulfate on the colony growth of Pseudomonas sp. G-1 was studied using the model. A high concentration of Cu2+ ions was found to result in decreases in the value of mu(m)', colony diameter, and the rate of increase in the colony diameter.
Rodin
V B
VB
State Research Center of Applied Microbiology, Obolensk, Moscow oblast, Russia.
Panikov
N S
NS
Kobelev
V S
VS
Akimova
N A
NA
Kholodenko
V P
VP
D001419:Bacteria / Q000187:drug effects* / Q000254:growth & development*; D015169:Colony Count, Microbial; D008954:Models, Biological