Figure 6. The ONSEN LTR is rapidly activated throughout the seedlings.

Transcriptional activity of the ONSEN LTR fused to the GUS reporter gene in Col-0 wild type plants in one week-old seedling under non-stressed (A–C) and 30 h heat stress conditions (D–F). Details of shoot (G–I) and root (J–L) images of GUS stained seedlings after 30 min (G, J), 1 h (H, K) and 2 h heat stress (I, L). Scale bars represent 1 mm (A and D) or 0.1 mm (other panels).