Figure 3. Expression of SlSRN1 in responses to pathogen infection and treatments with defense signaling hormones.

Four-week-old tomato seedlings were inoculated by spore suspension of B. cinerea (A), bacterial suspension of Pst DC3000 (B) or similar volume of buffer solution as mock-inoculation control or treated by foliar spraying with 1 mM SA, 100 µM MeJA, 100 µM ACC solutions or sterilized distill water as a control (C). Leaf samples were collected at different time points after inoculation or treatment as indicated. Total RNA was extracted and used for qRT-PCR analysis. Data presented are the means ± SD from three independent experiments and different letters above the columns indicate significant differences at p<0.05 level.