Peaks detected in extracts of H. annuus glandular trichomes.

aRetention time (minutes)bmasses of compounds inferred from (+/−)-LC-MS data. The mass to charge ratio (m/z) for [M−H]-, [M + Cl]-, or [M + acetic acid]- ions were detected in (−)-LC-MS, whereas the m/z for [M+H]+, [M+Na]+, or [M+K]+ ions were detected in (+)-LC-MS. When the compounds were named, the masses and the eluting patterns in a C18 column (i.e., hydrophobicity of STLs) were considered. The separation pattern detected in a (−)-LC-MS was given as a reference in Figure 3. Published papers [35], [36] were used to guide these chemical identifications.crange of values (n = 6 samples/accession) for the percent contribution of this sample peak to total peak area measured per sample.ŦIndicates peaks containing two high-abundance m/z values, suggesting multiple co-eluting compounds.