SPENCER, D Relationship of nitrite and hydroxylamine reductases to nitrate assimilation and nitrogen fixation in Azotobacter agile. [electronic resource] - Journal of bacteriology Apr 1957 - 553-62 p. digital Publication Type: Journal Article ISSN: 0021-9193 Standard No.: 10.1128/jb.73.4.553-562.1957 doi Subjects--Topical Terms: Azotobacter--metabolismEnzymesNitrites--metabolismNitrogen FixationOxidoreductases