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Taxonomy and phylogeny of the Xeranthemum group (Asteraceae) - morphological, anatomical, phytochemical and molecular aspects

dc.contributor.advisorJanaćković, Peđa
dc.contributor.otherMarin, Petar
dc.contributor.otherDajić-Stevanović, Zora
dc.creatorGavrilović, Milan
dc.date.accessioned2020-02-07T10:29:20Z
dc.date.available2020-02-07T10:29:20Z
dc.date.available2020-07-03T08:08:09Z
dc.date.issued2019-11-16
dc.identifier.urihttp://eteze.bg.ac.rs/application/showtheses?thesesId=7162
dc.identifier.urihttps://nardus.mpn.gov.rs/handle/123456789/11822
dc.identifier.urihttps://fedorabg.bg.ac.rs/fedora/get/o:20856/bdef:Content/download
dc.identifier.urihttp://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025236402
dc.description.abstractXeranthemum grupu čine rodovi Shangwua, Amphoricarpos, Chardinia, Xeranthemum i Siebera, anatomski, mikromorfološki i fitohemijski gotovo neistraženi. Taksonomija čitave grupe, posebno roda Amphoricarpos je veoma komplesna. U ovom istraživanju je pokazano da mikromorfološke osobine povezuju višegodišnje vrste, određene povezuju jednogodišnje, određene su specifične za vrste, a određene zajedničke za sve taksone. Taksoni roda Amphoricarpos pokazuju slične anatomske karakteristike, dok su odabrani anatomski karakteri taksonomski značajni za diferencijaciju vrsta roda Xeranthemum. U cipselama taksona roda Amphoricarpos detektovano je osam masnih kiselina, od kojih je linolna dominantna, a u cipselama X. cylindraceum 12, od kojih je dominantna oleinska. Dominantan seskviterpenski lakton kod A. elegans je 3-deoksiamforikarpolid. Kod istraživanih taksona roda Amphoricarpos identifikovano je 30 fenolnih jedinjenja, gde je hrizoeriol dominantan među površinskim jedinjenjima svih taksona, a 5-O-kafeoilhinska kiselina među vakuolarnim, osim kod A. neumayerianus subsp. neumayerianus. Biološka aktivnost taksona roda Amphoricarpos pokazala je veoma dobar ili umeren efekat. Određeni mikromorfološki, anatomski i molekularni markeri podržavaju filogeniju Xeranthemum grupe. Morfološki karakteri vegetativnih struktura i glavice najbolje su razdvojili četiri balkanska taksona roda Amphoricarpos. Mikromorfološki karakteri involukralne brakteje posebno izdvajaju bosansko-hercegovački takson. Fitohemijske razlike evidentne su između balkanskih taksona. Molekularne analize su pokazale da je rod Amphoricarpos monofiletski i da su balkanski taksoni podeljeni na dve klade: bosansko-hercegovačku i crnogorsku. Rezultati podržavaju podizanje taksonomskog ranga Xeranthemum grupe na nivo podtribusa.sr
dc.description.abstractThe Xeranthemum group includes Shangwua, Amphoricarpos, Chardinia, Xeranthemum and Siebera, anatomically, micromorphologically and phytochemically almost unexplored. The taxonomy of the whole group, especially of the Amphoricarpos is very complex. In this study, it was shown that micromorphological traits link together perennial species, some link annual ones, some are species-specific, and some are common to all taxa. Amphoricarpos taxa showed similar anatomical features, while selected anatomical characters differentiated Xeranthemum species. Eight fatty acids were found in the Amphoricarpos taxa cypselae, of which linoleic was dominant, while 12 fatty acids were found in X. cylindraceum cypselae, of which oleic was dominant. The dominant sesquiterpene lactone in the A. elegans is 3-deoxyamphoricarpolide. In Amphoricarpos taxa 30 phenolic compounds were identified, where chryzoeriol was dominant among the surface compounds of all taxa, and 5-O-caffeoylcholic acid among vacuolar ones, except for A. neumayerianus subsp. neumayerianus. The biological activity of Amphoricarpos showed a very good or moderate effect. Certain micromorphological, anatomical and molecular markers support the phylogeny of the Xeranthemum group. The morphological characters of the vegetative structures and the capitulum best separated four Balkan Amphoricarpos taxa. The micromorphological characters of the involucral bract particularly distinguished the Bosnian-Herzegovinian taxon. Phytochemical differences are evident between Balkan taxa. Molecular analyzes have shown that the genus Amphoricarpos is monophyletic and that the Balkan taxa are divided into two clades: Bosnian-Herzegovinian and Montenegrin. The results support raising the taxonomic rank of the Xeranthemum group on subtribal level.en
dc.formatapplication/pdf
dc.languagesr
dc.publisherУниверзитет у Београду, Биолошки факултетsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173029/RS//
dc.rightsopenAccessen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceУниверзитет у Београдуsr
dc.subjectAsteraceaesr
dc.subjectAsteraceaeen
dc.subjectseskviterpenski laktoni i fenolna jedinjenjasr
dc.subjectsesquiterpene lactones and phenolic compoundsen
dc.subjectXeranthemum grupasr
dc.subjectmorfologijasr
dc.subjectmikromorfologijasr
dc.subjectanatomijasr
dc.subjectmasne kiselinesr
dc.subjectITS i plastidni markerisr
dc.subjectbiološka aktivnostsr
dc.subjecttaksonomijasr
dc.subjectfilogenijasr
dc.subjectXeranthemum groupen
dc.subjectmorphologyen
dc.subjectmicromorphologyen
dc.subjectanatomyen
dc.subjectfatty acidsen
dc.subjectITS and plastid markersen
dc.subjectbiological activityen
dc.subjecttaxonomyen
dc.subjectphylogenyen
dc.titleTaksonomija i filogenija Xeranthemum grupe (Asteraceae) - morfološki, anatomski, fitohemijski i molekularni aspektisr
dc.title.alternativeTaxonomy and phylogeny of the Xeranthemum group (Asteraceae) - morphological, anatomical, phytochemical and molecular aspectsen
dc.typedoctoralThesisen
dc.rights.licenseBY-NC-ND
dc.identifier.fulltexthttp://nardus.mpn.gov.rs/bitstream/id/1820/Disertacija.pdf
dc.identifier.fulltexthttp://nardus.mpn.gov.rs/bitstream/id/1821/IzvestajKomisije21829.pdf
dc.identifier.fulltexthttps://nardus.mpn.gov.rs/bitstream/id/1820/Disertacija.pdf
dc.identifier.fulltexthttps://nardus.mpn.gov.rs/bitstream/id/1821/IzvestajKomisije21829.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_nardus_11822


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