Molecular H2 and the PN2 function of azotobacter.
D001395:Azotobacter / Q000378:metabolism*; D002474:Cell-Free System; D003864:Depression, Chemical; D006859:Hydrogen / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D009586:Nitrogen Fixation; D010100:Oxygen / Q000378:metabolism; D010313:Partial Pressure
D006859:Hydrogen; D010100:Oxygen