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master's thesis
UTJECAJ SELENITA NA RAST I ANTIOKSIDACIJSKI ODGOVOR ZELENE MIKROALGE Monoraphidium cf. contortum
2018. urn:nbn:hr:181:549559
Pilipović, Ana
Josip Juraj Strossmayer University of Osijek
Department of biology

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Pilipović, A. (2018). UTJECAJ SELENITA NA RAST I ANTIOKSIDACIJSKI ODGOVOR ZELENE MIKROALGE Monoraphidium cf. contortum (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of biology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:181:549559

Pilipović, Ana. "UTJECAJ SELENITA NA RAST I ANTIOKSIDACIJSKI ODGOVOR ZELENE MIKROALGE Monoraphidium cf. contortum." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, 2018. https://urn.nsk.hr/urn:nbn:hr:181:549559

Pilipović, Ana. "UTJECAJ SELENITA NA RAST I ANTIOKSIDACIJSKI ODGOVOR ZELENE MIKROALGE Monoraphidium cf. contortum." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, 2018. https://urn.nsk.hr/urn:nbn:hr:181:549559

Pilipović, A. (2018). 'UTJECAJ SELENITA NA RAST I ANTIOKSIDACIJSKI ODGOVOR ZELENE MIKROALGE Monoraphidium cf. contortum', Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, accessed 12 November 2024, https://urn.nsk.hr/urn:nbn:hr:181:549559

Pilipović A. UTJECAJ SELENITA NA RAST I ANTIOKSIDACIJSKI ODGOVOR ZELENE MIKROALGE Monoraphidium cf. contortum [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of biology; 2018 [cited 2024 November 12] Available at: https://urn.nsk.hr/urn:nbn:hr:181:549559

A. Pilipović, "UTJECAJ SELENITA NA RAST I ANTIOKSIDACIJSKI ODGOVOR ZELENE MIKROALGE Monoraphidium cf. contortum", Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:181:549559

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TitleUTJECAJ SELENITA NA RAST I ANTIOKSIDACIJSKI ODGOVOR ZELENE MIKROALGE Monoraphidium cf. contortum
Title (english)THE INFLUENCE OF SELENITE ON GROWTH AND ANTIOXIDATIVE RESPONSE IN GREEN MICROALGA Monoraphidium cf. contortum
AuthorAna Pilipović
MentorDubravka Špoljarić Maronić (mentor)
MentorIvna Štolfa Čamagajevac (mentor)
Committee memberRosemary Vuković (predsjednik povjerenstva)
Committee memberDubravka Špoljarić Maronić (član povjerenstva)
Committee memberIvna Štolfa Čamagajevac (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Department of biology
Osijek
Defense date and country2018-01-31, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Selen (Se) je kemijski mikroelement esencijalan za mnoge organizme, uključujući i mikroalge koje predstavljaju glavni put prijenosa Se iz vode prema drugim potrošačima u hranidbenim mrežama vodenih ekosustava. Cilj istraživanja bio je utvrditi utjecaj različitih koncentracija selenita (5, 25, 50 i 100 mg/L) na antioksidacijski status jednostanične zelene alge Monoraphidium cf. contortum tijekom različitih vremenskih perioda (24, 48 i 72 sata). Tretmani selenitom uzrokovali su inhibiciju rasta alga i smanjenje sadržaja fotosintetskih pigmenata. U odnosu na kontrolne kulture, selenit je povećao aktivnost antioksidacijskih enzima (glutation-reduktaze, glutation-peroksidaze i askorbat-peroksidaze), a inhibirao aktivnost katalaze te uzrokovao povećanje sadržaja produkata lipidne peroksidacije. Utjecaj je bio izraženiji pri višim koncentracijama i tijekom dužeg izlaganja selenitu.
Abstract (english)
Selenium (Se) is a chemical microelement essential for many organisms, including microalgae. In aquatic ecosystems, microalgae represent the primary route of Se transport from water to other consumers in the food webs. The aim of this study was to determine the influence of different selenite concentrations (5, 25, 50 i 100 mg/L) on the antioxidative status of unicellular green alga Monoraphidium cf. contortum during different time periods (24, 48 and 72 hours). The results showed the inhibiting effect of selenite on algal growth as well as reduced content of photosynthetic pigments. Also, selenite treatment increased the activity of antioxidative enzymes (glutathione reductase, glutathione peroxidase and ascorbate peroxidase), inhibited the activity of catalase and caused the increase in the content of lipid peroxidation products compared to control cultures. All changes were more pronounced in higher selenite concentrations and longer treatments.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:181:549559
Study programmeTitle: Master of Science Graduate University Study Programme in Biology; specializations in: Master of Biology
Course: Master of Biology
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 on2018-02-06 08:36:18