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Acetaldehyde was shown to be an irreversible inhibitor of nitrogenase, hydrogenase, CO2 fixation and growth in the cyanobacterium Anabaena cylindrica, but had no effect on photosynthetic electron flow as measured by Methyl Viologen-dependent O2 uptake. The concentration-dependence of the inhibition of nitrogenase and hydrogenase activities was determined, and it was shown that acetaldehyde inhibition poses problems for anaerobic experiments in which the activities of these enzymes are measured in the presence of the frequently used glucose/glucose oxidase/catalase/ethanol O2 trap. It is suggested that acetaldehyde may find use as an inhibitor in experiments designed to separate electron flow through the photosystems from consequent fixation of CO2 and N2.
B Slatyer, and
A Daday, and
G D Smith
July 1981,
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B Slatyer, and
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B Slatyer, and
A Daday, and
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January 1989,
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B Slatyer, and
A Daday, and
G D Smith
January 1986,
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B Slatyer, and
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G D Smith
September 1976,
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B Slatyer, and
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January 1988,
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B Slatyer, and
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B Slatyer, and
A Daday, and
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B Slatyer, and
A Daday, and
G D Smith
August 1982,
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B Slatyer, and
A Daday, and
G D Smith
February 1988,
Biochemical and biophysical research communications,
