Fig 2. Defense responses in the roots of susceptible genotype BRB130 and resistant genotype CAAS260205 common bean seedlings inoculated with Fusarium oxysporum f. sp. phaseoli versus roots of non-inoculated (control) seedlings at 0, 24, 48, 72, 96 and 120 h post-inoculation.
A: POX activities; B: PAL activities; C: H2O2 accumulation; D: O2 - accumulation. Results from three repeated experiments are displayed. Bars indicated the standard deviations (± SD). Probability values between the control and treated plants were estimated by the Student’s t test, with significant difference at *P0.05 and **P0.01.