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Journal of Experimental Biology 19,78-87 (1942)
Published by Company of Biologists 1942

Studies on Nitrogen Fixation by Blue-Green Algae : I. Nitrogen Fixation by Anabaena Cylindrica Lemm

G. E. FOGG 1

1 Botany School, Cambridge

1. Anabaena cylindrica Lemin. has been obtained in pure unialgal bacteria-free culture.

2. Due precautions having been taken against contamination by other organisms and error due to absorption of fixed nitrogen from the atmosphere, this alga has been shown to possess the capacity of fixing nitrogen.

3. Nitrogen fixation does not take place in the presence of a sufficient quantity of readily available combined nitrogen.

Submitted on December 30, 1941






© The Company of Biologists Ltd 1942