Fig. 5

Trancript abundance of CYP79D genes in jasmonic acid-treated and untreated control leaves of Erythroxylum coca (a) and E. fischeri (b). Twigs were cut and placed in either tap water (ctr) or jasmonic acid (200 μM) for 18 h. Gene expression was determined by qRT-PCR. Means and standard errors are shown (E. coca, n = 4; E. fischeri, n = 3). The Kruskal-Wallis rank sum test was used to test for statistical significance. P-values ≤ 0.05 indicate significant difference between the treatments. ctr, control treatment; JA, jasmonic acid treatment