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Vpliv živega srebra na lizosome v celicah prebavnih žlez kopenskega enakonožca Parcellio scaber (Isopoda, Crustacea) : diplomska nalogaPadovan, IngridNamen diplomskega dela je bil preveriti, ali lahko z metodo NRRT (Neutral red retention time) dokažemo vpliv živega srebra na stabilnost lizosomalne membrane v prebavnih lezah (hepatopankreas) ... izopodnih rakov (Porcellio scaber-Isopoda, Crustacea). Metoda temelji na ocenjevanju zadrževalnega časa nevtral rdečega v lizosomih. Izoliranim žlezam smo dodali barvilo nevtral rdeče in opazovali čas,pri katerem je prišlo do razlitja barvila iz lizosomov. Bolj kot so membrane lizosomov prizadete zaradi vpliva povišanih koncentracij kemikalij nanje, prej pride do razlitja barvila v citosol. Prirejeno metodo smo uporabili na prebavnih žlezah živali, ki so bile v laboratoriju izpostavljene bakru (Cu) in vitro - inkubacija v 50 in 100 I-Ig Cu/l za 1 uro in ivemu srebru (Hg) in viva 3- in 10-dnevni prehranjevalni poskusi, kjer so bile živali izpostavljene 5 in 50 I-Ig Hg/g suhe teže hrane. Poleg tega smo metodo uporabili na prebavnih žlezah P. scaber nabranih na različnih neonesnaženih (Maribor, Kobjeglava) in onesnaženih (Idrija, Velenje) lokacijah po Sloveniji. V vseh primerih pride pri živalih iz čistih okolij do destabilizacije lizosomov pozneje kakor pri Cu, Hg ali živalih, ki so izpostavljene kemikalijam v okolju. Metoda ne razlikuje med živalmi izpostavljenimi 5 I-Ig/g Hg in 50 1-19/g Hg. V primerjavi z ostalimi lokacijami so najbolj prizadete žleze živali iz Velenja. Živali iz Idrije so manj prizadete od tistih iz Velenja, vendar bolj kakor kontrolne živali, morda zaradi možnosti daljšega časovnega prilagajanja. Metoda NRRT se odlikuje po tem, da je hitro izvedljiva in enostavna ter zato tudi priporočljiva za izvajanje hitrega ugotavljanja kvarnih učinkov povišanih koncentracij živega srebra na nivoju lizosomov.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Nova Gorica : [I. Padovan], 2005Language - slovenianCOBISS.SI-ID - 427515
Author
Padovan, Ingrid
Other authors
Drobne, Damjana
Topics
diplomske naloge |
živo srebro |
lizosomi |
nevtral rdeče |
Porcellio scaber
Library/institution |
City | Acronym | For loan | Other holdings |
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University of Nova Gorica | Nova Gorica | PNG |
outside loan 1 cop.
reading room 1 cop. |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Padovan, Ingrid | |
Drobne, Damjana | 11155 |
Source: Personal bibliographies
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