Volatile compounds in Thymus sect. Teucrioides (Lamiaceae): Intraspecific and interspecific diversity, chemotaxonomic significance and exploitation potential

dc.contributor.author	Pitarokili, D	en
dc.contributor.author	Constantinidis, T	en
dc.contributor.author	Saitanis, C	en
dc.contributor.author	Tzakou, O	en
dc.date.accessioned	2014-06-06T06:53:09Z
dc.date.available	2014-06-06T06:53:09Z
dc.date.issued	2014	en
dc.identifier.issn	16121880	en
dc.identifier.uri	http://dx.doi.org/10.1002/cbdv.201300333	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/6401
dc.subject	Chemotaxonomy	en
dc.subject	Chemotypes	en
dc.subject	Essential oils	en
dc.subject	Hierarchical cluster analysis (HCA)	en
dc.subject	Principal components analysis (PCA)	en
dc.subject	Thymus sect. Teucrioides	en
dc.subject.other	1 octen 3 ol	en
dc.subject.other	3 carene	en
dc.subject.other	absinthol	en
dc.subject.other	acetaldehyde	en
dc.subject.other	alpha phellandrene	en
dc.subject.other	alpha thujene	en
dc.subject.other	beta pinene	en
dc.subject.other	borneol	en
dc.subject.other	bornyl acetate	en
dc.subject.other	camphene	en
dc.subject.other	carvacrol	en
dc.subject.other	caryophyllene	en
dc.subject.other	caryophyllene oxide	en
dc.subject.other	cineole	en
dc.subject.other	cyoctol	en
dc.subject.other	essential oil	en
dc.subject.other	hydrocarbon	en
dc.subject.other	limonene	en
dc.subject.other	linalool	en
dc.subject.other	myrcene	en
dc.subject.other	octanol	en
dc.subject.other	para cymene	en
dc.subject.other	pinene	en
dc.subject.other	sabinene	en
dc.subject.other	sesquiterpene derivative	en
dc.subject.other	terpene derivative	en
dc.subject.other	terpinene	en
dc.subject.other	terpinolene	en
dc.subject.other	thymol	en
dc.subject.other	volatile agent	en
dc.subject.other	altitude	en
dc.subject.other	article	en
dc.subject.other	chemical composition	en
dc.subject.other	chemotaxonomy	en
dc.subject.other	genetic variability	en
dc.subject.other	hydrodistillation	en
dc.subject.other	intraspecific variation	en
dc.subject.other	Lamiaceae	en
dc.subject.other	mass fragmentography	en
dc.subject.other	nonhuman	en
dc.subject.other	Teucrioides alpinus	en
dc.subject.other	Teucrioides candilicus	en
dc.subject.other	Teucrioides hartvigii	en
dc.subject.other	Teucrioides leucospermus	en
dc.subject.other	Teucrioides macrocalyx	en
dc.subject.other	Teucrioides teucrioides	en
dc.title	Volatile compounds in Thymus sect. Teucrioides (Lamiaceae): Intraspecific and interspecific diversity, chemotaxonomic significance and exploitation potential	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/cbdv.201300333	en
heal.publicationDate	2014	en
heal.abstract	Thymus sect. Teucrioides comprises three species, namely, T. hartvigii, T. leucospermus, and T. teucrioides, distributed in Greece and Albania. The volatile constituents of all species of the section were obtained by hydrodistillation and investigated by GC-FID and GC/MS analyses. Twenty populations were sampled and a total of 103 compounds were identified, representing 98.0-99.9% of the oil compositions. The oils were mainly characterized by high contents of monoterpene hydrocarbons (42.7-92.4%), with the exception of three oils for which oxygenated monoterpenes were the dominating constituents, viz., that of T. hartvigii ssp. macrocalyx, with linalool as main compound (89.2±0.5%), and those of T. hartvigii ssp. hartvigii and of one population of T. teucrioides ssp. candilicus, containing thymol as major component (46.4±3.1 and 38.2±3.9%, resp.). The most common compound in the oils of the 20 populations of the section was p-cymene. Considerable variation was detected within and among populations, and seven chemotypes were distinguished, i.e., p-cymene, linalool, p-cymene/thymol, p-cymene/γ-terpinene, p-cymene/borneol, p-cymene/γ-terpinene/ borneol, and p-cymene/linalool chemotypes. Different chemotypes may exist in the same population. Multivariate statistical analyses enabled the segregation of the oils within Thymus sect. Teucrioides into two groups, one consisting of the three subspecies of T. teucrioides and the second comprising the species T. hartvigii and T. leucospermus. A linalool-rich chemotype, unique within the section, distinguished the oil of T. hartvigii ssp. macrocalyx from all other oils. The high oil content of p-cymene and the preference for serpentine substrates render T. teucrioides species promising for future exploitation. Copyright © 2014 Verlag Helvetica Chimica Acta AG, Zürich.	en
heal.publisher	Wiley-VCH Verlag	en
heal.journalName	Chemistry and Biodiversity	en
dc.identifier.issue	4	en
dc.identifier.volume	11	en
dc.identifier.doi	10.1002/cbdv.201300333	en
dc.identifier.spage	593	en
dc.identifier.epage	618	en