Chemotaxonomic significance of volatile compounds in Thymus samius and its related species Thymus atticus and Thymus parnassicus

dc.contributor.author	Tzakou, O	en
dc.contributor.author	Constantinidis, T	en
dc.date.accessioned	2014-06-06T06:46:42Z
dc.date.available	2014-06-06T06:46:42Z
dc.date.issued	2005	en
dc.identifier.issn	03051978	en
dc.identifier.uri	http://dx.doi.org/10.1016/j.bse.2005.03.008	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/3145
dc.subject	Chemotaxonomy	en
dc.subject	Essential oils variation	en
dc.subject	Greece	en
dc.subject	Hybrid	en
dc.subject	Labiatae	en
dc.subject	Thymus	en
dc.subject.other	chemotaxonomy	en
dc.subject.other	essential oil	en
dc.subject.other	hybrid	en
dc.subject.other	Eastern Hemisphere	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Northern Aegean	en
dc.subject.other	Samos	en
dc.subject.other	Southern Europe	en
dc.subject.other	World	en
dc.subject.other	Lamiaceae	en
dc.subject.other	Thymus (thyme)	en
dc.subject.other	Thymus zygioides	en
dc.title	Chemotaxonomic significance of volatile compounds in Thymus samius and its related species Thymus atticus and Thymus parnassicus	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.bse.2005.03.008	en
heal.publicationDate	2005	en
heal.abstract	Thymus samius, a rare species endemic to the island of Samos (East Aegean, Greece), has been considered to be of possible hybrid origin, with Thymus cilicicus, Thymus parnassicus or Thymus zygioides as putative parents. Morphologically it also resembles Thymus atticus. In order to evaluate any possible chemotaxonomic relationships indicated by the qualitative and/or quantitative differentiation of volatile compounds, the essential oils of T. samius, T. parnassicus and T. atticus were analyzed and the oils of T. cilicicus and T. zygioides were used for comparison. T. atticus presents considerable variation in chemical constituents, with all Greek populations being poor in thymol/carvacrol and rich in (E)-nerolidol, germacrene D, (E)-caryophyllene, caryophyllene oxide, 1,8-cineole, α-pinene and camphene, depending on the sample. T. parnassicus shows remarkable qualitative stability in its volatile constituents, and all its populations have a similar profile with (E)-caryophyllene being the most prominent compound. T. samius is characterized by the presence of germacrene D and β-bisabolene, which constitute almost half its oil percentage. This species is also characterized by a low amount of monoterpenes; the latter exist in a considerable percentage in the related species. Our results indicate that T. samius does not show similarity or intermediacy in chemical compounds with any given couple of T. atticus, T. parnassicus, T. cilicicus, or T. zygioides. © 2005 Elsevier Ltd. All rights reserved.	en
heal.journalName	Biochemical Systematics and Ecology	en
dc.identifier.issue	11	en
dc.identifier.volume	33	en
dc.identifier.doi	10.1016/j.bse.2005.03.008	en
dc.identifier.spage	1131	en
dc.identifier.epage	1140	en