Fig. 2

Expression pattern of OsMDHAR4. a Expression analysis of OsMDHAR4 in different tissues containing root, shoot, stem, sheath and blade of flag leaf, and panicle by qRT-PCR. Error bars indicate the SE based on three biological replicates. Statistical differences among the samples are labeled with different letters according to the LSD test (P < 0.05, one-way ANOVA). b Expression of OsMDHAR4 under abiotic stress conditions. Seedlings (3.5- to 4.5-leaf stage) were subjected to heat (45 °C), PEG (20% [w/v] PEG 6000), ABA (100 μM), H₂O₂ (100 mM), salt (250 mM NaCl), and cold (4 °C). Relative expression levels of OsMDHAR4 were examined by qRT-PCR. The rice Actin1 gene was used as the internal control. Error bars indicate the SE based on three biological replicates. *, P < 0.05, **, P < 0.01, by Student’s t-test