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Vpliv različnih koncentracij arzenata na rast, razvoj in metabolizem ozkolistnega koščca (Berula erecta) in vitro : magistrsko deloPodgrajšek, Anja, 1992-Arzen je naravno razširjen element, ki lahko toksičen predstavlja nevarnost ljudem, ostalim organizmom in okolju. Z arzenom so onesnažena številna z vodo bogata območja, zato smo želeli raziskati ... možnosti razstrupljanja tega elementa z makrofitom ozkolistnim koščem (Berula erecta) v tkivni kulturi. Fitoremediacijski potencial B. erecta smo ugotavljali in vitro na Murashige in Scoog (1962) gojišču brez rastnih regulatorjev, ki smo mu po 14 dneh dodali arzenat (0, 0.1, 1, 10, 50 in 100 mg/l). Raziskali smo vpliv arzenata na rastne parametre, fotokemično učinkovitost FS II, vsebnost fotosinteznih barvil, antocianov, vsebnost glutationa in cisteina ter določali privzem arzena v tkivih rastlin. Nizke koncentracije arzena (0.1, 1 in 10 mg/l) so pozitivno vplivale na prirast sveže, suhe mase, na dolžino korenin in poganjkov ter na število brstov in stolonov, zelo očitno predvsem po tretjem tednu poskusa. Visoke koncentracije arzena (50 in 100 mg/l) so zavirale vse rastne parametre in zmanjšale fotokemično učinkovitost. Pri vseh obravnavah z arzenom se je znižala vsebnost fotosintetskih barvil in antocianinov. Privzem celokupnega arzena je naraščal z naraščajočo dodano koncentracijo arzena, intenzivneje v korenine, v primerjavi z nadzemnimi delih rastlin. Vsebnost glutationa in cisteina je v splošnem postopno naraščala z večanjem koncentracije dodanega arzena.Type of material - master's thesis ; adult, seriousPublication and manufacture - Maribor : [A. Podgrajšek], 2020Language - slovenianCOBISS.SI-ID - 48414723
Author
Podgrajšek, Anja, 1992-
Other authors
Ambrožič-Dolinšek, Jana |
Ciringer, Terezija
Topics
magistrska dela |
Berula erecta |
makrifiti |
arzen |
tkivne kulture |
fitoremediacija |
glutation |
master theses |
Berula erecta |
macrophytes |
tissue culture |
phytoremediation |
glutathione
Library | Call number – location, accession no. ... | Copy status |
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Miklošič Library FPNM, Maribor | D MAG 57/59 PODGRAJŠEK A. Vpliv IN: 920200064 |
available - reading room |
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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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Podgrajšek, Anja, 1992- | |
Ambrožič-Dolinšek, Jana | 12183 |
Ciringer, Terezija | 20761 |
Source: Personal bibliographies
and: SICRIS
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