Fig. 6

NtCIPK11 induced the transcription of genes involved in proline metabolism under salt treatment. a-c Expression levels of proline synthetase genes P5CS1 (a), P5CS2 (b), and P5CR (c). d Expression level of the proline catabolism gene ProDH1. e Proline content in one-week-old WT and transgenic seedlings germination on the medium containing 0 mM NaCl or 100 mM NaCl. The data represents means ± SD of three replicates and the statistical analyses were performed with one-way ANOVA test, ‘*’ p < 0.05, ‘**’ p < 0.01