sentence: Though it is acknowledged that the possibility and effects of transfer of genetic material are not different for Bacillus thuringiensis subsp. kurstaki strain PB 54 than for other naturally occurring Bacillus thuringiensis strains , transfer of genetic material by Bacillus thuringiensis subsp. kurstaki strain PB 54 after application is possible ( the strain has plasmids ) , so could not be excluded based on the information in the dossier .