title: Effect of molybdenum on nitrogen fixation by Clostridium butyricum.
authors.forename: H L
authors.initials: HL
authors.lastname: JENSEN
authors.forename: D
authors.initials: D
authors.lastname: SPENCER
mesh_terms: D001395:Azotobacter; D001419:Bacteria; D003013:Clostridium; D046972:Clostridium butyricum; D008982:Molybdenum; D009586:Nitrogen Fixation
chemical_list: D008982:Molybdenum