title: Nitrogen fixation and the heterocyst in blue-green algae.
mesh_terms: D000641:Ammonia / Q000378:metabolism; D002245:Carbon Dioxide / Q000378:metabolism; D000458:Cyanobacteria / Q000201:enzymology / Q000378:metabolism / Q000648:ultrastructure*; D009586:Nitrogen Fixation; D009590:Nitrogen Radioisotopes; D009591:Nitrogenase / Q000378:metabolism; D010100:Oxygen / Q000378:metabolism; D010710:Phosphates / Q000378:metabolism; D010761:Phosphorus Radioisotopes; D010785:Photophosphorylation; D010788:Photosynthesis; D011506:Proteins / Q000378:metabolism
chemical_list: D009590:Nitrogen Radioisotopes; D010710:Phosphates; D010761:Phosphorus Radioisotopes; D011506:Proteins; D002245:Carbon Dioxide; D000641:Ammonia; D009591:Nitrogenase; D010100:Oxygen