Morphology and reproductive processes of the L forms of bacteria. I. Streptococci and staphylocci.

Journal of Bacteriology
L Dienes

Abstract

The production of L forms from cocci, the conditions necessary for their multiplication, and their morphology have been studied for several years. In each strain studied, only a few organisms produced L forms. Transplants from these grew poorly at first, and growth on agar and in broth became abundant only after long cultivation. Multiplication in the form of small granules was observed only when the organisms were embedded in agar and occasionally in coagulated blood serum. On the surface of hard agar, the organisms increased in size but did not multiply. Abundant growth developed on membrane filters of appropriate size, extending into the filters as branching irregular masses. On gelatin, on most samples of coagulated serum, and on silica gel, the organisms grew to a very large size, and occasionally colonies developed by multiplication of large bodies. This multiplication occurred by irregular enlargement and separation into fragments. Growth in broth and in semisolid agar also occurred by multiplication of large bodies, but, in addition, the development of viable granules was observed inside the large bodies in broth culture. After the L forms began to grow abundantly, their nutritional requirements were simple; they no lon...Continue Reading

References

Feb 1, 1966·Proceedings of the Society for Experimental Biology and Medicine·L Dienes, S Madoff
Mar 1, 1966·Bacteriological Reviews·J H Hanks
Jul 1, 1953·Proceedings of the Society for Experimental Biology and Medicine·L DIENES
Oct 1, 1954·Proceedings of the Society for Experimental Biology and Medicine·J T SHARP
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Jan 15, 1960·Annals of the New York Academy of Sciences·E A FREUNDT
Oct 1, 1963·Journal of Bacteriology·B M BANDUR, L DIENES
Jan 15, 1960·Annals of the New York Academy of Sciences·S MADOFF

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Citations

Jan 1, 1977·Microbiology and Immunology·K OkudaT Eda
Jan 11, 1975·Antonie van Leeuwenhoek·A H Horwitz, L E Casida
Jan 1, 1970·Archiv für Mikrobiologie·P S Corfield, D G Smith
Oct 1, 1972·Acta Oto-laryngologica·T K BhattacharyyaS C Agarwal
Jan 1, 1974·Antonie van Leeuwenhoek·A M Jetten, G D Vogels
Nov 20, 1969·The New England Journal of Medicine·D S Feingold
Jan 1, 1969·Zeitschrift für allgemeine Mikrobiologie·E Schuhmann, U Taubeneck
Jan 1, 1970·Antonie van Leeuwenhoek·C P van Boven
May 1, 1968·Journal of Bacteriology·H R Burmeister, C W Hesseltine
Apr 1, 1997·Clinical Microbiology Reviews·G J Domingue, H B Woody
Jul 1, 1970·Journal of Bacteriology·T W Huber, V T Schuhardt
Oct 1, 1975·Infection and Immunity·D J Bibel, J W Lawson
Jan 1, 1971·Journal of Bacteriology·P B Wyrick, H Gooer
Feb 1, 1971·Journal of Bacteriology·P B Wyrick, H Gooder
Oct 1, 1972·Journal of Bacteriology·D J Bibel, J W Lawson

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