A Note on the Effect of Diluents on the Determination of Viable Numbers of Azotobacteriaceae |
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| Authors: | Sylvia Billson Kay Williams J. R. Postgate |
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| Affiliation: | A.R.C. Unit of Nitrogen Fixation, University of Sussex, Brighton BN 19QJ, Sussex, England |
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| Abstract: | S ummary . Azotobacteriaceae suffer dilution shock in physiological saline. Valid plate counts were obtained only when dilutions were made in a salt mixture resembling the growth medium. Dilution shock was progressive and was related to the oxygen sensitivity of the group. |
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