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. 1976 Jul;127(1):149-53.
doi: 10.1128/jb.127.1.149-153.1976.

Oxygen requirement for acetylene reduction by pure cultures of rhizobia

D L Keister, W R Evans

Oxygen requirement for acetylene reduction by pure cultures of rhizobia

D L Keister et al. J Bacteriol. 1976 Jul.

Abstract

The oxygen and nutritional requirements for acetylene reduction by Rhizobium japonicum and Rhizobium sp. in liquid culture are described. The optimal oxygen concentration was about 0.1% in the gas phase, which is lower than that of any other known aerobic nitrogen-fixing microorganism. these organisms are also unique in that nitrogenase synthesis is not repressed in the presence of ammonium chloride under certain cultural conditions, in contrast to other wild-type bacteria.

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References

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