Production of trans-chrysanthemic acid and its precursors in ripened transgenic tomato fruits (Br + 15) expressing TcCDS, ShADH and ShALDH under the control of PG promoter. A, Concentration of CDP. B, Concentration of trans- chrysanthemol. C, Concentration of trans-chrysanthemal. D, Concentration of trans-chrysanthemic acid. All the data are means ± SD (n ≥ 6). Y-axis on the left shows concentrations in μg, and the y-axis on right shows concentration in nmoles. N.D., Not detected.