title: Inactivation and repression by ammonium of the nitrate reducing system in chlorella.
mesh_terms: D002474:Cell-Free System; D000460:Chlorophyta / Q000187:drug effects / Q000201:enzymology* / Q000378:metabolism / Q000528:radiation effects; D003864:Depression, Chemical; D004789:Enzyme Activation; D004794:Enzyme Repression; D005486:Flavin Mononucleotide; D005182:Flavin-Adenine Dinucleotide; D008027:Light; D009243:NAD; D009566:Nitrates / Q000378:metabolism*; D009573:Nitrites; D010088:Oxidoreductases / Q000096:biosynthesis / Q000378:metabolism*; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*; D011830:Radiation Effects; D013268:Stimulation, Chemical; D013997:Time Factors
chemical_list: D009566:Nitrates; D009573:Nitrites; D000644:Quaternary Ammonium Compounds; D009243:NAD; D005182:Flavin-Adenine Dinucleotide; D005486:Flavin Mononucleotide; D010088:Oxidoreductases