Fig. 6

Quantitative RT-PCR analysis of the genes involved in proline biosynthesis in A. thaliana on day-2, day-4 and day-7 post treatment. Each bar represents the mean ± SE of six replicate samples (each sample represents 200 mg seedlings from one Magenta box). * Significant difference (P ≤ 0.05) in data between NS + NI and any other treatment within a particular day of analysis. ! Significant difference (P ≤ 0.05) between WS + I and WS + NI samples within a particular day of analysis. Statistical analysis was done to compare data between two different treatments by Student’s t-test (two-tailed analysis, P ≤ 0.05) using Microsoft Excel 2010