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Genealogy of phenol-producing mutants of P. putida S12. The left column shows how each successive mutant was obtained. The right column indicates the yield (mol phenol/mol glucose) attained in a typical shake flask culture (51). NTG, N-methyl-N′-nitro-N-nitrosoguanidine; MFPr: resistant to 100 mg m-fluoro-dl-phenylalanine·liter−1; MFTr, resistant to 100 mg m-fluoro-l-tyrosine·liter−1.
