Research Information System
Plant Biosystems, vol.159, no.2, pp.254-264, 2025 (SCI-Expanded, Scopus)
Türkiye is considered one of the major centers of diversity for the genus Hypericum (Hypericaceae). In this study, the volatile compositions of above ground parts of seven Hypericum taxa growing wild in Türkiye (H. alacamdaglariense, H. empetrifolium subsp. empetrifolium, H. microcalycinum, H. montbretii, H. olympicum subsp. olympicum, H. perforatum and H. scabroides) were investigated. Microdistillation and/or hydrodistillation were performed to obtain volatile compounds, and subsequently analyzed by GC and GC/MS. In total, 128 and 120 different compounds were identified by micro- and hydrodistillation, respectively. Monoterpene- and sesquiterpene hydrocarbons were abundant, followed by n-alkanes and oxigenated sesquiterpenes. The phytochemical data were evaluated using principal component analysis and hierarchial cluster analysis which exposed the contribution of compounds to the overall chemodiversity and revealed key compounds that help discrimination of the samples. This study also presents the first report on the volatile composition of H. alacamdaglariense, one of the most recently identified Hypericum species in Türkiye.