title: Fixation of nitrogen by the mutants of Aspergillus terreus NRRL 1960.
mesh_terms: D001230:Aspergillus / Q000378:metabolism*; D003470:Culture Media; D009154:Mutation; D009566:Nitrates; D009573:Nitrites; D009586:Nitrogen Fixation; D013997:Time Factors
chemical_list: D003470:Culture Media; D009566:Nitrates; D009573:Nitrites