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The nature of the opaque colony variation in group A streptococci*

Published online by Cambridge University Press:  15 May 2009

Maclyn McCarty
Maclyn McCarty
Affiliation:
The Rockefeller University, New York
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Opaque colonies of group A streptococci, detected on clear agar plates with obliquely transmitted light, are composed of extremely long chains of cocci. The mucopeptide layer of the cell-wall is involved in the formation of enhanced intercellular bridges. It is suggested that this exaggerated chaining results in an altered growth pattern which gives the appearance of granular opacity to surface colonies.

Type
Research Article
Information
Journal of Hygiene , Volume 64 , Issue 2 , June 1966 , pp. 185 - 190
Copyright
Copyright © Cambridge University Press 1966

References

REFERENCES

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