Figure 9.

Effect of DMTU and DPI on H₂S-induced IAA production in cucumber seedlings. (a) YUCCA2 mRNA abundance; (b) FMO activity; (c) IAA accumulation. Cucumber seedlings were pretreated with 5.0 mM DMTU, 100 μM DPI, or deionized water and then sprayed with NaHS after 6 h. Twelve hours later, the seedlings were exposed to 5 °C for 9 h. The data represent the mean ± SD of three biological replicates. Different letters indicate significant differences (p < 0.05), according to Duncan’s new multiple range test.