Fig. 1

Endogenous cucurbitacin content of in vitro agarwood. Content was measured after red and far-red light treatment over the course of 5 days. Data is represented as mean ± standard deviation (n = 5). At peak levels under red light conditions, cucurbitacin content was significantly increased compared to normal light conditions (paired t-test p-values 1.09E-5 and 4.57E-6 for cucurbitacin I and E respectively). At the lowest levels under far-red light conditions, cucurbitacin content was significantly decreased compared to normal light conditions (paired t-test p-values 3.44E-2 and 1.32E-4 for cucurbitacin I and E respectively)