Figure 3.

The effects of 4-week-old A. tumefaciens-induced crown galls located at the base of the stems on shoot development and leaf senescence in tomato plants. A, Retarded wild-type shoot (left) and a typically taller Nr shoot with large leaves (right). Note that the older leaves in the wild-type plant started to turn yellow and senesce. B, Moderate water stress caused leaf senescence in the wild-type shoot (left), whereas most of the leaves remained green and healthy on the Nr shoot (right).