1887

Abstract

Summary: A simple method is described for measuring the profile of bacterial colonies. Profiles were determined for colonies of and of different ages. In spite of differences in cell morphology, the colony profiles had a common basic structure consisting of a steeply rising leading edge connected by a ridge to an interior region where height also rose, though less steeply, to a flat or domed centre. The colony mass increased exponentially through part of the growth phase. It is suggested that net colony growth consists of a combination of leading edge growth, which is unrestricted and approaches the maximum specific growth rate of the organism, and diffusion-limited growth in the colony interior. Common elements of profiles from each species may be a consequence of such differences in growth rate.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-114-2-483
1979-10-01
2021-10-21
Loading full text...

Full text loading...

/deliver/fulltext/micro/114/2/mic-114-2-483.html?itemId=/content/journal/micro/10.1099/00221287-114-2-483&mimeType=html&fmt=ahah

References

  1. Cooper A.L., Dean A.C.R., Hinshelwood C. 1968; Factors affecting the growth of bacterial colonies on agar plates. Proceedings of the Royal Society B171:175–199
    [Google Scholar]
  2. Palumbo S.A., Johnson M.G., Rieck V.T., Witter L.D. 1971; Growth measurements on surface colonies of bacteria. Journal of General Microbiology 66:137–143
    [Google Scholar]
  3. Pirt S.J. 1967; A kinetic study of the mode of growth of surface colonies of bacteria and fungi. Journal of General Microbiology 47:181–197
    [Google Scholar]
  4. Pirt S.J. 1975 Principles of Microbe and Cell Cultivation pp. 234–239 Oxford: Blackwell Scientific Publications;
    [Google Scholar]
  5. Wimpenny J.W.T., Lewis M.W.A. 1977; The growth and respiration of bacterial colonies. Journal of General Microbiology 103:9–18
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-114-2-483
Loading
/content/journal/micro/10.1099/00221287-114-2-483
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error