Figure 1. Volatile terpene analysis of BCC in response to mechanical damage.

(A) The ratios of monoterpene to sesquiterpene in CK, MD_2 h and MD_6 h group of BCC; (B) the ratios of D-boreneol in each group; D Comparisons of the relative abundance of the identified volatile terpene among different treatment groups, an asterisk (*) indicated p < 0.05 when compared with the CK group while two asterisks (**) indicated that P < 0.01 when compared with the CK group.