Hydrogen-supported nitrogenase activity in two cyanobacteria

Rao, R. ; Banerjee, M. ; Kumar, A. ; Kumar, H. D. (1987) Hydrogen-supported nitrogenase activity in two cyanobacteria Current Microbiology, 16 (2). pp. 75-78. ISSN 0343-8651

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Official URL: http://www.springerlink.com/content/g43227j3146684...

Related URL: http://dx.doi.org/10.1007/BF01588175


The effects of hydrogen gas on nitrogenase activity of nitrogen-fixing cyanobacteria Aulosira fertilissima and Chlorogloeopsis fritschii were studied. Addition of as little as 10% hydrogen either in air, N2, or N2+CO2 markedly stimulated acetylene reduction. It has been shown that hydrogen can act as an alternate source both under reductant-saturating and reductant-deficient conditions. The results indicate the presence of a strong oxyhydrogen reaction in both species.

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