Hidra kao objekt u evolucijskim istraživanjima

undergraduate thesis

• Title (english): Hydra as an object in evolutionary research
• Author: Iva Franić
• Mentor: Goran Kovačević (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2010, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Hidra je radijalno simetrična slatkovodna višestanična životinja. Pripada vrlo staroj skupini Cnidaria koja je najbliža vanjska grupa grupi Bilateria. Kod žarnjaka se prvi puta u životinjskom svijetu pojavljuju određeni sustavi kao što su imunološki, živčani i optjecajni sustav, epitel i definirana građa tijela. Hidra se koristi kao model u istraživanjima vezanim uz regeneraciju, pojavu glavnih tjelesnih osi i razvitka građe tijela kod odvedenijih višestaničnih životinja. S obzirom na pojavu endosimbioze kod zelene hidre Hydra viridissima i jednostaničnih zelenih algi roda Chlorella, bitna je i za proučavanje simbiotskih odnosa. U ovom radu željela sam ukazati na osnovne karakteristike hidre te na neka evolucijska istraživanja vezana uz nju. Hidra se već više od 300 godina koristi u istraživanjima, pa tako i evolucijskim. Unaprjeđenjem metoda molekularne biologije i genetike otvaraju se nove mogućnosti eksperimentalnog proučavanja i boljeg razumijevanja evolucije višestaničnih organizama, u čemu će hidra kao bitan modalni organizam imati zasigurno vrlo važnu ulogu.

Abstract (english)

Hydra is radially symmetric freshwater multicellular animal. Hydra belongs to an ancient group of Cnidaria, which is the nearest outgroup to Bilateria. Cnidarians are the first group of animals with immunologic, nervous and circulatory systems, epithel and defined body plan. Hydra is used as a model in research related to regeneration, the appearance of the main body axis and the development of body build in higher multicellular animals. Given the emergence of endosymbiosis between Hydra viridissima and unicellular green algal genus Chlorella, green hydra is essential for study of symbiotic relationships. In this paper, I wanted to point out the basic features of Hydra and some evolutionary research related thereto. Over 300 years it has been used in research, including evolutionary research. With advancement of molecular biology and genetics new posibilities are opened for experimental study and a better understanding of the evolution of multicellular organisms, in which the hydra as a significant modal organism has certainly a very important role.

• Keywords: hidra; evolucijska istraživanja
• Keywords (english): hydra; evolutionary research
• Language: croatian
• URN:NBN: urn:nbn:hr:217:862242
• Study programme: Title: Environmental Sciences; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-03-23 10:24:43