title: Compositions of essential oils and trichomes of Teucrium chamaedrys L. subsp. trapezunticum Rech. fil. and subsp. syspirense (C. Koch) Rech. fil.
abstract: Teucrium chamaedrys L. is a member of the Lamiaceae family and is represented in the Flora of Turkey by six subspecies. The aerial organs of T. chamaedrys L. subsp. trapezunticum Rech. fil. and subsp. syspirense (C. Koch) Rech. fil. bears numerous eglandular and glandular trichomes. Eglandular trichomes are simple, long-multicellular with cuticular micropapillae, and glandular hairs are of peltate and capitate types. The peltate hairs consist of a basal cell, a short unicellular stalk, and multicellular secretory head, and the capitate ones possess 1-2 stalk cells and one glandular head cell. The aerial parts were subjected to microdistillation for the isolation of volatiles. The analysis was simultaneously performed by using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The major components were characterized as beta-caryophyllene (18%), nonacosane (12%), germacrene D (11%), caryophyllene oxide (7%), and alpha-pinene (7%) for subsp. trapezunticum, and caryophyllene oxide (23%), alpha-pinene (11%), and caryophyllenol II (5%) for subsp. syspirense.
authors.affiliation: Anadolu University, Faculty of Pharmacy, Pharmaceutical Botany, 26470 Eskişehir, Turkey. aykaya@anadolu.edu.tr
authors.forename: Ayla
authors.initials: A
authors.lastname: Kaya
authors.forename: Betül
authors.initials: B
authors.lastname: Demirci
authors.forename: K Hüsnü C
authors.initials: KH
authors.lastname: Başer
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D008855:Microscopy, Electron, Scanning; D009822:Oils, Volatile / Q000737:chemistry*; D031367:Teucrium / Q000737:chemistry* / Q000145:classification
chemical_list: D009822:Oils, Volatile