Figure 2From: RNA-seq analysis reveals the role of red light in resistance against Pseudomonas syringae pv. tomato DC3000 in tomato plants Effects of nightly light treatment on the tomato defence resistance against DC3000. (A) Bacterial populations were measured at 1 hour and 3 days post-inoculation (OD = 0.1). Dark, no nightly light treatment; P, night lighting with purple light; B, night lighting with blue light; G, night lighting with green light; Y, night lighting with yellow light; R, night lighting with red light. The data represent mean values (± SD) of colony forming units (CFU) per square centimeter from five biological replicates, each replicate consisting of three leaf discs. Means denoted by the same letter did not significantly differ at p < 0.05 according to Duncan’s multiple range test. Initial bacterial numbers (1 hpi) was quantified to ensure the uniformity of inoculation of DC3000. (B) Photographs were taken 6 d after DC3000 inoculation; Microscopic lesions of representative tomato leaf samples at 3 days after DC3000 dipping (40-fold magnification). The experiment was repeated twice with similar results.Back to article page