Chemotaxonomic significance of volatile constituents in Hypenia (Mart. ex Benth.) R. Harley (Lamiaceae)

Journal of the Brazilian Chemical Society

Rezende, Maria H¹  Silva, Julierme G¹  Ferri, Pedro H¹  Seraphin, José C¹  Santos, Suzana C¹  Ferreira, Heleno D¹  Universidade de Brasília, Brasília, Brazil¹  Faria, Maria T¹  Oliveira, Érica R¹  Universidade Federal de Goiás, Goiânia, Brazil¹  Ribeiro, Dalva G¹ 

关键词: Hypenia;    Lamiaceae;    essential oil;    chemical variability;    chemotaxonomy;    multivariate analysis;   

DOI  :  10.1590/S0103-50532011000500020

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

Multivariate analysis of essential oil compositions of thirteen Hypenia species revealed the presence of two taxonomic clusters. Cluster I included three species belonging to section Densiflorae in addition to H. subrosea and H. aristulata, and showed the highest percentages of α-muurolol (5.85 ± 3.08%). In Cluster II, which contained eight species belonging to section Laxiflorae, the major discriminant constituents were (E)-caryophyllene (7.09 ± 4.88%), germacrene D (18.1 ± 11.4%), and bicyclogermacrene (6.65 ± 1.19%). All essential oils showed a predominance of sesquiterpenes, such as spathulenol (4.5-31.6%), caryophyllene oxide (2.2-14.4%) and selin-11-en-4α-ol (0-34.8%). Furthermore, identical clusters were revealed by multivariate analysis of chemical constituents based on carbon skeletons, as well as on 18 morphological leaf characters of the species studied.

【 授权许可】

Unknown