Figure 4.

JcTM6:AtIPT4 transgenic J. curcas produced bisexual flowers. (A–C) Branch of an inflorescence from the WT (A), L16 (B), and L6 (C) plants. For clarity, the sepals and petals were removed from the flowers. Yellow arrows indicate male flowers; white arrow indicates female flower; and red arrows indicate bisexual flowers; scale bars = 1 cm. (D) Cytokinin levels in male and female flowers of WT plants. The values represent the means ± standard deviations (n = 3). Student’s t-test was used for the statistical analyses: * p ≤ 0.05, ** p ≤ 0.01. (E) Female flowers of the WT plants and bisexual flowers of the L16 and L6 plants after the sepals and petals were removed. The inset shows the stamens marked by red ellipse; scale bar = 3 mm.