Differential effects of oxygen on N2 fixation and C2H2 reduction by Anabaena cylindrica |
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| Authors: | Ohmori Masayuki; Hattori Akihiko |
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| Institution: | Ocean Research Institute, University of Tokyo Nakano, Tokyo 164, Japan |
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| Abstract: | Both nitrogen fixation and acetylene reduction by intact cellsof Anabaena cylindrica were inhibited by oxygen, but nitrogenfixation was invariably less sensitive than acetylene reduction.The C2H2/N2 ratio ranged from 6 to 8 in the absence of oxygen,and it decreased with increase in partial pressure of oxygento 2 at a pO2 of 0.3 atm. (Received June 5, 1979; ) |
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