Fig. 2From: Adaptation mechanism and tolerance of Rhodopseudomonas palustris PSB-S under pyrazosulfuron-ethyl stressEffect of pyraxosulfuron-ethyl on R. palustris PSB-S cell morphology. (a) CK; (b) pyraxosulfuron-ethyl. The cells were harvested at 7 days post culturing and examined by Scanning Electron Microscopy. R. palustris PSB-S cells showing curving or budding are indicated with white and red arrows, respectively. Bar = 5 μmBack to article page