Fig. 2.

The expression level of RhMED15a-like in rose plants under dehydration stress and hormone treatments. a Morphological changes in rose plants under dehydration treatment. Dehydration-treated rose plants were placed horizontally with their roots exposed to air, while the controls were held in water under the same conditions. Cont, control plants; DE, dehydration-treated plants. Scale bar, 7 cm. b The water loss rate of rose plants under dehydration stress. The values represent the means ± SDs (n = 3). c Relative expression of the RhMED15a-like gene in the leaves and roots of rose plants after dehydration treatment for 0, 1, 6, 12, and 24 h. The transcript level of RhMED15a-like at 0 h was normalized to 1. The values represent the means ± SDs (n = 3). d Relative expression of RhMED15a-like under exogenous hormone treatments. ABA, 200 µM abscisic acid; SA, 200 µM salicylic acid; JA, 200 µM methyl jasmonate. The values represent the means ± SDs (n = 3). The asterisks denote significant differences calculated using the independent samples t test (**p < 0.01; ***p < 0.001, two-tailed)