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master's thesis
Prooksidativni učinak kvercetina na vrstu Polycelis felina (Daly.)
Zagreb: University of Zagreb, Faculty of Science, 2010. urn:nbn:hr:217:195487
Matković, Helena
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

Cite this document

Matković, H. (2010). Prooksidativni učinak kvercetina na vrstu Polycelis felina (Daly.) (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:195487

Matković, Helena. "Prooksidativni učinak kvercetina na vrstu Polycelis felina (Daly.)." Master's thesis, University of Zagreb, Faculty of Science, 2010. https://urn.nsk.hr/urn:nbn:hr:217:195487

Matković, Helena. "Prooksidativni učinak kvercetina na vrstu Polycelis felina (Daly.)." Master's thesis, University of Zagreb, Faculty of Science, 2010. https://urn.nsk.hr/urn:nbn:hr:217:195487

Matković, H. (2010). 'Prooksidativni učinak kvercetina na vrstu Polycelis felina (Daly.)', Master's thesis, University of Zagreb, Faculty of Science, accessed 18 May 2024, https://urn.nsk.hr/urn:nbn:hr:217:195487

Matković H. Prooksidativni učinak kvercetina na vrstu Polycelis felina (Daly.) [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2010 [cited 2024 May 18] Available at: https://urn.nsk.hr/urn:nbn:hr:217:195487

H. Matković, "Prooksidativni učinak kvercetina na vrstu Polycelis felina (Daly.)", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2010. Available at: https://urn.nsk.hr/urn:nbn:hr:217:195487

Metadata
TitleProoksidativni učinak kvercetina na vrstu Polycelis felina (Daly.)
Title (english)Prooxidative effect of quercetin on the species Polycelis felina (Daly.)
AuthorHelena Matković
MentorMirjana Kalafatić (mentor)
Committee memberMirjana Kalafatić (predsjednik povjerenstva)
Committee memberAna Galov (član povjerenstva)
Committee memberRenata Šoštarić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2010, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Flavonoidi su fenolni spojevi široko rasprostranjeni u biljkama kao sekundarni metaboliti. Posjeduju širok spektar bioloških učinaka, a ti učinci posljedica su moduliranja djelovanja enzima i nuklearnih receptora, utjecaja na ekspresiju gena, te helatiranja metalnih iona. Kvercetin je najčešći flavonoid u biljkama i najviše je proučavan. Do sada nije proučavan učinak kvercetina na vrstu Polycelis felina (Daly.) u laboratorijskim uvjetima, koja je pogodan test organizam u ovakvim istraživanjima. U ovim pokusima utvrđeno je da kvercetin u primijenjenim koncentracijama izaziva promjene u ponašanju tretiranih životinja, morfološke promjene u obliku depigmentacije pojedinih dijelova tijela, te promjene u histološko-citološkoj građi tretiranih planarija. Najizrazitije promjene uočavaju se na totipotentnim stanicama neoblastima, te na retikularnim stanicama. Utvrđene promjene bile su najintezivnije trećeg dana nakon tretiranja, a spomenute promijenjene stanice bile se zastupljene u većem broju u odnosu na kontrolnu skupinu jedinki.
Abstract (english)
Flavonoids are phenolic compounds widely present in plants as secondary metabolites. They exhibit a wide range of biological effects arising mainly from their ability to modulate several enzymes or nuclear receptors, alter gene expression, chelate bivalent metals. Quercetin is the most abundant of the flavonoid molecules in plants and it is the most studied one. Quercetin effect on Polycelis felina (Daly.), which is convenient test organism in such studies, has not been analyzed in laboratory yet. In these tests it is determined that implemented concentration of quercetin cause behevioral changes of treated animals, morphological changes in depigmentation of certain body parts and histopathological-cytological structure of treated planarian. The most exceptional changes are noticed on totipotent cells of neoblasts and reticular cells. Determined changes were most intensive on the third day after treatment, and above mentioned cells were represented in higher number compared to control group of animals.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:195487
Study programmeTitle: Biology; specializations in: Ecology
Course: Ecology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra biologije (magistar/magistra biologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2018-03-28 09:58:13