title: N2-fixation by chemoautotrophic hydrogen bacteria.
mesh_terms: D000114:Acetylene; D000332:Aerobiosis; D001128:Argon; D001419:Bacteria / Q000378:metabolism*; D003470:Culture Media; D005030:Ethylenes; D005971:Glutamates; D009584:Nitrogen; D009586:Nitrogen Fixation; D009591:Nitrogenase / Q000032:analysis; D010084:Oxidation-Reduction
chemical_list: D003470:Culture Media; D005030:Ethylenes; D005971:Glutamates; D001128:Argon; D009591:Nitrogenase; D009584:Nitrogen; D000114:Acetylene