Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
Effect of selenate on selected biochemical and physiological characteristics on common duckweed |
Sekundarni povzetek: |
The aim of our research was to study the effect of different concentrations of selanate
on selected biochemical and physiological characteristics in common duckweed. Plants were
exposed to different concentrations of selenate solution (Na2SeO4). Selected biochemical and
physiological characteristics of the studied plants were measured weekly. We monitored the
content of photosynthetic pigments (chlorophyll a and b and carotenoids), photochemical
efficiency of photosystem II (PS II) and electron transport system (ETS) activity. Our
research showed that the addition of 0.5 mg/L and 1 mg/L of selenate did not affect selected
biochemical and physiological characteristics, while addition of 2 mg/L of selenate had a
positive effect on the amount of photosynthetic pigments, photochemical efficiency of
photosystem II (PS II) and also increased electron transport system (ETS) activity. Addition
of 5 mg/L and 10 mg/L of selenate presented stress for the plant. |
Sekundarne ključne besede: |
botany;botanika; |
Vrsta datoteke: |
application/pdf |
Vrsta dela (COBISS): |
Diplomsko delo |
Komentar na gradivo: |
Univ. Ljubljana, Pedagoška fak., Biotehnišak fak., Fak. za kemijo in kemijsko tehnologijo, Naravoslovnotehniška fak., Kemija in biologija |
Strani: |
X, 73 f., [5] f. pril. |
Vrsta dela (ePrints): |
thesis |
Naslov (ePrints): |
Effect of selenate on selected biochemical and physiological
characteristics on common duckweed
|
Ključne besede (ePrints): |
mala vodna leca (Lemna minor L.) |
Ključne besede (ePrints, sekundarni jezik): |
common duckweed (Lemna minor L.) |
Povzetek (ePrints): |
V okviru diplomskega dela smo ugotavljali vpliv selenata na izbrane biokemijske in
fiziološke lastnosti pri mali vodni leci. Zanimala nas je tudi razlika v odzivu male vodne lece,
ki je bila izpostavljena razlicnim koncentracijam selenata. Poskusne rastline smo izpostavili
razlicnim koncentracijam raztopine natrijevega selenata (Na2SeO4) v rastni komori. V
dolocenih casovnih presledkih smo merili izbrane biokemijske in fiziološke lastnosti
preucevane rastline. Spremljali smo vsebnost fotosinteznih barvil (klorofila a in b ter
karotenoidov), fotokemicno ucinkovitost fotosistema II (FS II) in aktivnost elektronskega
transportnega sistema (ETS). Rezultati naše raziskave so pokazali, da dodatek selenata v
koncentracijah 0,5 in 1 mg/L ni vplival na izbrane biokemijske in fiziološke lastnosti
preucevane rastline, medtem ko je dodatek 2 mg/L selenata pozitivno vplival na vsebnost
fotosinteznih barvil, fotokemicno ucinkovitost fotosistema II in dvignil aktivnost
elektronskega transportnega sistema. Dodatek selenata v koncentracijah 5 in 10 mg/L je
povzrocil stres za preucevano rastlino. |
Povzetek (ePrints, sekundarni jezik): |
The aim of our research was to study the effect of different concentrations of selanate
on selected biochemical and physiological characteristics in common duckweed. Plants were
exposed to different concentrations of selenate solution (Na2SeO4). Selected biochemical and
physiological characteristics of the studied plants were measured weekly. We monitored the
content of photosynthetic pigments (chlorophyll a and b and carotenoids), photochemical
efficiency of photosystem II (PS II) and electron transport system (ETS) activity. Our
research showed that the addition of 0.5 mg/L and 1 mg/L of selenate did not affect selected
biochemical and physiological characteristics, while addition of 2 mg/L of selenate had a
positive effect on the amount of photosynthetic pigments, photochemical efficiency of
photosystem II (PS II) and also increased electron transport system (ETS) activity. Addition
of 5 mg/L and 10 mg/L of selenate presented stress for the plant. |
Ključne besede (ePrints, sekundarni jezik): |
common duckweed (Lemna minor L.) |
ID: |
8310942 |