Figure 1. Trehalose, sucrose and starch content in GPA-infested tomato. (A) Trehalose and sucrose levels were measured at the indicated hours post infestation (hpi) in un-infested (-GPA) and GPA-infested (+GPA) leaves of the tomato variety Motelle (n = 3). (B) Starch content was measured in un-infested (-GPA) and GPA-infested (+GPA) tomato leaves of Motelle kept for 24 h in a 14/10 h light/dark cycle (Top panel) or for 24 h in complete darkness (Lower panel) (n = 3). For the light/dark cycle, insects were released on plants (0 h) immediately after start of the light period (8:00AM). In A and B, each plant received 25 adult aphids. Error bars represent SE. nd, non-detectable.