Figure 6

Quantitative RT-PCR analysis of selected OsPIN genes in rice (Oryza sativa L. cv. Nagdong) under exogenous phytohormones treatment and gravistimulation. Phytohormones indole-3-acetic acid (IAA) (a), phenyl acetic acid (PAA) (b), jasmonic acid (JA) (c), gibberellic acid (GA) (d), and 6-benzylaminopurine (6-BAP) (e) were used at 10 µM in agar medium. Vertical bars indicate mean ± standard error of the mean (n = 3). Statistical analysis was calculated by the Bonferroni post-test two-way RM ANOVA method. Asterisks in the vertical bar indicate significant difference at ^*p < 0.05, ^**p < 0.01, ^***p < 0.001 compared to controls.