An expression vector pU1301-aiiA containing a synthesized gene encoding acyl-homoserine lactonase(aiiA)gene from Bacillus thuringiensis driven by maize ubiquitin promoter was constructed and then transferred into Amorphophallus konjac mediated by Agrobacterium tumefaciens.Only 9 resistant calli were produced,finally 34 resistant plants were obtained.The independented plantlets regenerated from different calli were assayed by PCR.The positive rate of PCR was 62.7 % in all putative transgenic plants.Dot hybri...