title: Evidence for the involvement of a genetic determinant controlling functional specificity of group VI B elements in the metabolism of N2 and NO-3 in the blue-green alga Nostoc muscorum.
mesh_terms: D002857:Chromium / Q000494:pharmacology*; D000458:Cyanobacteria / Q000187:drug effects / Q000235:genetics / Q000378:metabolism*; D008982:Molybdenum / Q000494:pharmacology*; D009566:Nitrates / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism*; D014414:Tungsten / Q000494:pharmacology*
chemical_list: D009566:Nitrates; D002857:Chromium; D008982:Molybdenum; D009584:Nitrogen; D014414:Tungsten