Fig. 3. Mutants showing low intensities of Fluc luminescence. Bright (a) and luminescence (b) images of the mutants. Fluc-dependent luminescence was imaged in the 2-week-old M3 generation of EMS-mutated  APXII - Fluc  plants ( apsi ) using EM-CCD camera. Control,  APXII - Fluc  plants.