title: A new aquatic nitrogen-fixing bacterium from three Cambridgeshire chalk streams.
authors.forename: E
authors.initials: E
authors.lastname: GRAY
authors.forename: J D
authors.initials: JD
authors.lastname: SMITH
mesh_terms: D001419:Bacteria; D002119:Calcium Carbonate; D009584:Nitrogen; D009586:Nitrogen Fixation; D045483:Rivers
chemical_list: D002119:Calcium Carbonate; D009584:Nitrogen