title: Why has the "nitrogenase plasmid" snubbed the Pseudomonads?
mesh_terms: D005075:Biological Evolution; D003486:Cyanides / Q000378:metabolism; D009591:Nitrogenase / Q000235:genetics*; D010957:Plasmids; D011548:Pseudomonadaceae / Q000201:enzymology* / Q000235:genetics; D013045:Species Specificity
chemical_list: D003486:Cyanides; D009591:Nitrogenase