Genetically modified tobacco plants were prepared bearing the bacterial gene .I.bphC./I.coding for 2,3-dihydroxybiphenyl-1,2-dioxygenase. Gene form .I.Comamonas testosteroni./I. B-356 was cloned into plasmid .I.pBI 121./I. containing CaMV 35S promotor introduced into .I.Agrobacterium./I.. Successful cloning was confirmed by amplification of .I.bphC./I. from plant DNA using specific primers.
