Figure 9.

Stress tolerance of melatonin-deficient rice mutant lines. (a) Salt-treated rice seedlings. (b) MDA levels after salt treatment. (c) Heat-treated rice seedlings. (d) MDA levels after heat treatment. Methods for salt and heat treatment are described in Figure 6 and Figure 8, respectively. tdc, TDC suppression rice; snat2, SNAT2 suppression R7 rice; comt, COMT suppression rice; A, Ashahi rice (wild type of t5h mutant rice); t5h, T5H mutant rice. Different letters and asterisks indicate significant differences as determined by a post-hoc Tukey’s HSD test at p < 0.05.