Figure 4.

Effect on physiological indices of tobacco plants after chilling treatments. a) Electrolyte leakage analysis of tobacco plants in response to MV (5 μM) treatment. The electrical conductivity (EC) of the MV solution was compared with the total EC of the solution after tissue destruction. b) Quantitative analysis of H2O2 levels in tobacco plants after 36 h of chilling treatment. c) The expression levels of the MsDJLP genes were normalized to the tobacco (Nicotiana tabacum L.) actin gene as the internal control. Bars with different letters are significantly different (P ≤ 0.05) according to Duncan’s multiple range test.