Figure 5.

Gas chromatography-mass spectroscopy profiles. (A) Total ion chromatogram of the products formed by sesquiterpene synthases (ASSs) with farnesyl diphosphate as a substrate. (B) Mass spectra of the sesquiterpenes and their authentic standards. Peak 1 is β-elemene, peak 2 is α-guaiene, and peak 3 is δ-guaiene.

Xu et al. BMC Genomics 2013 14:227   doi:10.1186/1471-2164-14-227
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