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A new bacterial variant: the non-motile H form

Published online by Cambridge University Press:  15 May 2009

Willy Hirsch
Willy Hirsch
Affiliation:
Bacteriological Laboratory of the Jewish Workers Sick Fund (Kupat Holim), Haifa (Palestine)
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From the faeces of a carrier a strain of Salm. paratyphi B was grown repeatedly which—even under conditions most favourable for bacterial motility—was completely non-motile despite its being richly flagellated and optimally Hagglutinable. The strain has in all subcultures, so far, for more than 1 year retained its peculiarity, viz. absence of the motor function of the flagella which morphologically and serologically appears to be normally developed.

This new bacterial variant, the non-motile H form, is considered to be the result of a loss variation which—possibly related to a somatic degradation of the bacilli—affects the genetic factor responsible for the function or the development of the centre for the motility of the flagella.

Type
Research Article
Information
Journal of Hygiene , Volume 45 , Issue 4 , December 1947 , pp. 417 - 419
Copyright
Copyright © Cambridge University Press 1947

References

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