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master's thesis
Morfološka i biološka obilježja alohtone vrste Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 na području Splita
2023. urn:nbn:hr:226:016318
Krajina-Roso, Celestin
University of Split
University Department of Marine Studies

Cite this document

Krajina Roso, C. (2023). Morfološka i biološka obilježja alohtone vrste Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 na području Splita (Master's thesis). Split: University of Split. Retrieved from https://urn.nsk.hr/urn:nbn:hr:226:016318

Krajina Roso, Celestin. "Morfološka i biološka obilježja alohtone vrste Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 na području Splita." Master's thesis, University of Split, 2023. https://urn.nsk.hr/urn:nbn:hr:226:016318

Krajina Roso, Celestin. "Morfološka i biološka obilježja alohtone vrste Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 na području Splita." Master's thesis, University of Split, 2023. https://urn.nsk.hr/urn:nbn:hr:226:016318

Krajina Roso, C. (2023). 'Morfološka i biološka obilježja alohtone vrste Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 na području Splita', Master's thesis, University of Split, accessed 02 April 2025, https://urn.nsk.hr/urn:nbn:hr:226:016318

Krajina Roso C. Morfološka i biološka obilježja alohtone vrste Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 na području Splita [Master's thesis]. Split: University of Split; 2023 [cited 2025 April 02] Available at: https://urn.nsk.hr/urn:nbn:hr:226:016318

C. Krajina Roso, "Morfološka i biološka obilježja alohtone vrste Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 na području Splita", Master's thesis, University of Split, Split, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:226:016318

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TitleMorfološka i biološka obilježja alohtone vrste Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 na području Splita
Title (english)Morphological and biological characteristics of allochthonous species Dictyota cyanoloma Tronholm, De Clerck, A. Gomez-Garreta, Rull Lluch, 2010 in Split area
AuthorCelestin Krajina-Roso
MentorZvjezdana Popović Perković (mentor)
Committee memberZvjezdana Popović Perković (predsjednik povjerenstva)
Committee memberVida Šimat (član povjerenstva)
Committee memberVedran Poljak (član povjerenstva)
GranterUniversity of Split
(University Department of Marine Studies)
Split
Defense date and country2023-02-17, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Abstract
Svojte roda Dictyota su široko rasprostranjene, a većina vrsta obitava u tropskim i umjereno toplim morima. Cilj ovog rada je ispitivanje morfoloških, reproduktivnih i antioksidacijskih značajki alohtone vrste Dictyota cyanoloma na području Splita. Jedinke su prikupljene u razdoblju od 15. prosinca 2021. do 20. ožujka 2022. godine, u razmacima od četrnaest dana. Utvrđeno je da na području Splita obitavaju pretežno sporofiti (94,3%) s povremeno prisutnim ženskim gametofitima (2,85%). Muški... More gametofiti nisu zabilježeni. Izračunat je promjer sporangija koji iznosi 58,39 ± 15,9 μm s gustoćom od 6120,22 ± 2236,69 po centimetru kvadratnom. Dužina sorusa iznosi 210 ± 110 μm, a širina 130 ± 60 μm, a broj oogonija po sorusu iznosi 25,48 ± 19,13. Također, od morfoloških vrijednosti zabilježena je prosječna dužina talusa 79,13 ± 22,99 mm, internodija I 7,98 ± 4,67 mm, internodija II 7,9 ± 3,41 mm te terminalne grančice 1,54 ± 0,78 mm. Dužina kortikalnih stanica iznosila je 33,46 ± 10,77 μm, a širina 14,29 ± 4,82 μm. Dužina medularnih stanica iznosila je 69,79 ± 14,41 μm, a širina 47,51 ± 8,79 μm. Antioksidativna svojstva su određena koristeći FRAP („ferric reducing/antioxidant power“) metodu s rezultatom 1131,86 ± 12,96 µM Fe²+ i određivanjem inhibicije DPPH (2,2- difenil-1-pikrilhidrazil) radikala s rezultatom 34,82 ± 0,3% inhibicije. Ukupni fenoli su određeni metodom po Folin-Ciocalteau s rezultatom od 167,08 ± 5,95 mg GAE/L. S obzirom na rezultate može se zaključiti da se D. cyanoloma u Jadranu razmnožava uglavnom nespolno te da su talusi nešto većih dimenzija, ali s malo manjim kortikalnim, medularnim i spolnim stanicama nego prethodno opisano. Alga pokazuje dobar antioksidacijski potencijal te visoki udio ukupnih fenola. Less
Abstract (english)
The genus Dictyota is a widely distributed with most species inhabiting tropical and subtropical seas. This paper is focused on morphological, reproductive and antioxidative characteristics of Dictyota cyanoloma in Split area. The specimens were collected between 15.12.2021 and 20.3.2022 in fourteen-day intervals. The results showed that the populations present in Split area are mostly sporophytes (94.3%), with few female gametophytes (2.85%) and absent male gametophytes. Sporangia... More diameter was 58,39 ± 15,9 μm and density 6120,22 ± 2236,69 per centimeter square. Sori lengths stood at 210 ± 110 μm with widths of 130 ± 60 μm. Oogonia per sori count was 25,48 ± 19,13. Additionally, morphological traits were measured, and thalli length was 79,13 ± 22,99 mm, internodium I 7,98 ± 4,67 mm, internodium II 7,9 ± 3,41 mm and terminal branch 1,54 ± 0,78 mm. Cortical cells length was 33,46 ± 10,77 μm with widths of 14,29 ± 4,82 μm. Medullar cells lengths was 69,79 ± 14,41 μm with widths of 47,51 ± 8,79 μm. Antioxidative properties were determined using the FRAP (ferric reducing/antioxidant power) method with a result of 1131,86 ± 12,96 µM Fe²+ and the inhibition of DPPH (2,2- difenil-1-pikrilhidrazil) radical which was 34,82 ± 0,3%. Total phenolic content was determined using the Folin-Ciocalteau method with a result of 167,083 ± 5,95 mg GAE / L. The data above clearly shows that D. cyanoloma populations in the Adriatic Sea reproduce mainly vegetatively and that the thalli are slightly larger than previously described, but with smaller reproductive, cortical, and medullar cells. Additionally, the algae exhibit a good antioxidative potential with a high total phenolic content. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:226:016318
Study programmeTitle: Graduate university studies Marine Ecology and Protection
Study programme type: university
Study level: graduate
Academic / professional title: sveučilišni magistar/magistra inženjer/inženjerka ekologije i zaštite mora (sveučilišni magistar/magistra inženjer/inženjerka ekologije i zaštite mora)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2023-12-20 08:16:04
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