Fig. 4.

Exogenous cytokinin application partially reverts R. solanacearum-induced early root phenotypes. Seven-day-old Col-0 seedlings were grown for 24 h in MS medium supplemented with kinetin (0, 25, and 50 nM) and were inoculated with R. solanacearum or water. (A) An image of representative plants was obtained using a stereoscope 72 h after infection or mock treatment. (B) Root growth was measured at the indicated time points. (C) Images of representative roots were obtained using a stereoscope at the indicated time points after infection. Error bars correspond to SEs. Asterisks indicate statistically significant differences between 24, 48, and 72 hpi in a paired Student’s t-test (**P<0.01, ***P<0.001).