Involvement of oxyleghaemoglobin and cytochrome P-450 in an efficient oxidative phosphorylation pathway which supports nitrogen fixation in Rhizobium.


Cellular ATP level, ATP/ADP ratio and nitrogenase activity rise when oxyleghaemoglobin is added to respiring suspensions of Rhizobium japonicum bacteroids from soybean root nodules. Increased gaseous O2 tension is much less efficient than oxyleghaemoglobin in stimulation of bacteroid ATP production. Studies with the inhibitor carbonyl cyanide m… (More)


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