Fig. 6

SPME-GC-MS analysis of VOCs from the tobacco floral. Wild type (WT), transformed by the empty vector pCAMBIA2300S (2300) and overexpressed LaMYC4 gene (35S::LaMYC4) plants (#3, #5). (a) Total contents. (b) monoterpenoids. (c) sesquiterpenoids. (d-h) GC trace of caryophyllene. The number on the peak represents the peak area. The products were identified by comparison with compounds in the library NIST14 and reference standards. The values shown are mean ± SD at least three replicates. Standard errors are indicated as vertical lines on the top of each bar, and bars annotated with different letters were significantly different according to Fisher’s LSD test (P < 0.05) after ANOVA