electroporation or Agrobacterium tumefaciens-mediated genetic transformation (AtMGT) were all un-successful. Neither transformation with pCambia 1301/2 (CAMV35S promoter and hyg selection marker), nor with pSP124S harboring the rbcS2 promoter and the Sh–ble selection marker gene with an rbcS2 introns [25], nor with pGenD–ble, harboring the PsaD promoter of C. reinhardtii and the Sh–ble selection marker gene, was successful. Attempts to reproduce the method reported by Kathiresan et al. using AtMGT were unsuccessful as well, possibly due to the difference in the strain. Only testing the method described by Steinbrenner and Sandmann using the mutated pds gene, conferring resistance to norflurazon, proved effective at the end.