THE INHIBITORY EFFECT OF PURINE NUCLEOSIDES AND NUCLEOTIDES ON THE PORPHYRIN SYNTHESIS BY  RHODOPSEUDOMONAS SPHEROIDES.
D000227:Adenine Nucleotides; D000255:Adenosine Triphosphate; D000963:Antimetabolites; D007982:Levulinic Acids; D008660:Metabolism; D009705:Nucleosides; D009711:Nucleotides; D011166:Porphyrins; D011684:Purine Nucleosides; D012106:Research; D012242:Rhodobacter sphaeroides; D012241:Rhodopseudomonas
D000227:Adenine Nucleotides; D000963:Antimetabolites; D007982:Levulinic Acids; D009705:Nucleosides; D009711:Nucleotides; D011166:Porphyrins; D011684:Purine Nucleosides; D000255:Adenosine Triphosphate; C032246:levulinic acid
ADENINE NUCLEOTIDES; ADENOSINE TRIPHOSPHATE; ANTIMETABOLITES; EXPERIMENTAL LAB STUDY; LEVULINIC ACID; METABOLISM; NUCLEOSIDES; PORPHYRINS; RHODOPSEUDOMONAS