[Regulation of the synthesis of 3-deoxy-D-arabinoheptuloso-7-phosphate-synthase in Pseudomonas bacteria].

Regulation of synthesis of 3-deoxy-D-arabinoheptulose-7-phosphate-synthase (DAHP-synthase) was analysed in 12 strains of Pseudomonas belonging to 10 species. Repression of synthesis of DAHP-synthase was registered in half of strains under study, this being controlled by tyrosin and phenilalanine in P. aeruginosa PAO1 and PAT 2152, P. fluorescens BKMB 896, P. acidovorans BKMB 1251 and P. testosteroni BKMB 1241 and by only phenilalanine in P. maltophilia BKMB 30. In the rest of cases (in P. putida AC29, P. stutzeri BKMB 148, P. mendocina BKMB 1299, P. marginata BKMB 1298, P. vesicularis BKMB 974 and P. fluorescens BKMB 35) the enzyme was synthesized constitutively.