Growth curve for Propionibacterium acnes
Related Experiment Video
Updated: Apr 10, 2026

In Vitro Evaluation of Oncogenic Transformation in Human Mammary Epithelial Cells
Published on: September 24, 2020
G S Hall1, K Pratt-Rippin, D M Meisler
1Section of Microbiology, Cleveland Clinic, OH.
Abstract:
We established growth curves for Propionibacterium acnes isolates recovered from eyes with chronic postoperative endophthalmitis. The growth curve plotted the average of the duplicate bacterial concentration against time. The generation time for P. acnes calculated from the growth curves was approximately 5.1 hours. The growth of P. acnes is slower than other anaerobic bacteria. This may account for its delayed appearance in culture of ocular specimens. It may also explain treatment failure if the concentration of an antibiotic injected into the vitreous does not remain at an effective level during the critical replicative phase of the organism.
Related Concept Videos
Population Growth
Bacterial Growth Curve
Microbial Growth Media
Exponential Growth
The Skin Microbiota
Acne Infection

