1887

Abstract

SUMMARY: Samples of a liquid culture of Proteus L9 were transferred to agar blocks containing the same medium as the liquid culture. Photomicrographs were made of the slide cultures thus obtained, and the diameters of a large number of individual L elements determined. The measurements indicated that the elements of the L cultures studied could be assigned to two classes (I and II) with regard to their size. The elements of class I had an average diameter of 0.33 μ (standard deviation 0.071; standard error of the mean 0.006 μ); the corresponding figures for class II were 0.94, 0.21 and 0.02 μ, respectively. The growth of individual L elements in the slide cultures was followed during incubation at 30°. Only elements having a diameter > 0.6 to 0.7 μ, i.e. elements belonging to class II, enlarged measurably or formed microcolonies. Calculations based on measurements made on L elements growing on streak plates confirmed these observations.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-27-2-241
1962-02-01
2019-10-14
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-27-2-241
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