Abstract
WE have reported1 that a symbiotic relationship exists between Rhodopseudomonas capsulatus (photosynthetic bacteria) and Azotobacter vinelandii. When they were mixed, the combination fixed three times more molecular nitrogen than did either pure culture. If the pH of the medium were controlled, the nitrogen fixation in the mixed culture was stimulated twelvefold2.
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References
Okuda, A., Yamaguchi, M., and Kobayashi, M., Soil and Plant Food (Tokyo), 6, 35 (1960).
Okuda, A., and Kobayashi, M. (unpublished data).
Catlin, B. W., and Cunningham, L. S., J. Gen. Microbiol., 19, 522 (1958).
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OKUDA, A., KOBAYASHI, M. Production of Slime Substance in Mixed Cultures of Rhodopseudomonas capsulatus and Azotobacter vinelandii. Nature 192, 1207–1208 (1961). https://doi.org/10.1038/1921207a0
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DOI: https://doi.org/10.1038/1921207a0
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