Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-28T20:44:44.138Z Has data issue: false hasContentIssue false
  • English
  • Français

Note on the effect of temperature on a mixed culture of two organisms in symbiotic relation

Published online by Cambridge University Press:  27 March 2009

E. H. Richards
E. H. Richards
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts.
Get access Rights & Permissions [Opens in a new window]

Extract

1. A study was made of nitrogen-fixation by Azotobacter chroococcum alone in a medium containing dextrose (which it can utilize) and in mixture with a coliform organism on a medium containing no carbohydrate except starch, which Azotobacter cannot utilize unless it be hydrolysed by the coliform organism or some other agency.

2. The amount of nitrogen fixed in the mixed cultures was found to be maximal at two temperatures, and a discussion is given of the causes thought to be operative in producing the double maximum.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 29 , Issue 2 , April 1939 , pp. 302 - 305
Copyright
Copyright © Cambridge University Press 1939

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Harden, A. & Walpole, G. S. (1906). Proc. roy. Soc., B, 77, 399.Google Scholar
Nicol, Hugh (1934). Sci. Progr. 29, 236.Google Scholar
Richards, E. H. (1917). J. agric. Sci. 8, 299.CrossRefGoogle Scholar
Vaughn, Reese (1938). J. Bact. 36, 357.CrossRefGoogle Scholar
Waksman, S. A. (1937). Soil Sci. 43, 51.Google Scholar
Waksman, S. A. & Foster, J. W. (1937). Soil Sci. 43, 69.CrossRefGoogle Scholar
Waksman, S. A. & Hutchings, I. J. (1937). Soil Sci. 43, 77.Google Scholar