Abstract
The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants – D. antarctica and D. caespitosa were studied. Investigations performed with D. antarctica plant samples delivered of Antarctic and D. caespitosa from Carpathian Mountains showed that UV-B radiation caused changes mainly pigment composition - chlorophyll a and almost all (except violaxanthin) carotenoids. Lipid composition was characterized by accumulation of triacylglicerols, sulphoquinovosyl diacylglycerol and phopsphatydylcholine while monogalacto-syldiacylglycerol quantity decreased. H2O2 treatment cause increase chlorophyll a content in both species and carotenoids in D. antarctica plants. Concerning glycolipid composition one could see monogalactosyldiacylglycerol content decrease in D. caespitosa whereas only insignificant SQDG enlargement was noted in D. antarctica leaves.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
UV-B altered chlorophyll a and nearly all carotenoids except violaxanthin in Deschampsia.
- Taxon
- Deschampsia antarctica Desv.
Deschampsia antarcticat0 - Treatment
- UV-B radiatione0
- Outcome
- chlorophyll a and almost all (except violaxanthin) carotenoidse0
- Direction
- changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-B radiation caused changes mainly pigment composition - chlorophyll a and almost all (except violaxanthin) carotenoids.”
t0“Deschampsia antarctica Desv.”
Claim · model-written summary
Deschampsia accumulated triacylglicerols, sulphoquinovosyl diacylglycerol and phopsphatydylcholine after UV-B.
- Taxon
- Deschampsia antarctica Desv.Deschampsia antarcticat0
- Treatment
- UV-B irradiationt0
- Outcome
- triacylglicerols, sulphoquinovosyl diacylglycerol and phopsphatydylcholinee0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lipid composition was characterized by accumulation of triacylglicerols, sulphoquinovosyl diacylglycerol and phopsphatydylcholine while monogalacto-syldiacylglycerol quantity decreased.”
t0“Deschampsia antarctica Desv. plants to UV-B irradiation”
Claim · model-written summary
UV-B decreased monogalacto-syldiacylglycerol quantity in Deschampsia.
- Taxon
- Deschampsia antarctica Desv.Deschampsia antarcticat0
- Treatment
- UV-B irradiationt0
- Outcome
- monogalacto-syldiacylglycerol quantitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lipid composition was characterized by accumulation of triacylglicerols, sulphoquinovosyl diacylglycerol and phopsphatydylcholine while monogalacto-syldiacylglycerol quantity decreased.”
t0“Deschampsia antarctica Desv. plants to UV-B irradiation”
Claim · model-written summary
H2O2 increased chlorophyll a in D. antarctica.
- Taxon
- D. antarcticaDeschampsia antarcticae0
- Treatment
- H2O2 treatmente0
- Outcome
- chlorophyll a contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H2O2 treatment cause increase chlorophyll a content in both species and carotenoids in D. antarctica plants.”
Claim · model-written summary
H2O2 increased chlorophyll a in D. caespitosa.
Not reportedComparator
Verbatim
e0“H2O2 treatment cause increase chlorophyll a content in both species and carotenoids in D. antarctica plants.”
e1“monogalactosyldiacylglycerol content decrease in D. caespitosa whereas only insignificant SQDG enlargement was noted in D. antarctica leaves.”
Claim · model-written summary
H2O2 increased carotenoids in D. antarctica.
- Taxon
- D. antarcticaDeschampsia antarcticae0
- Treatment
- H2O2 treatmente0
- Outcome
- carotenoidse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H2O2 treatment cause increase chlorophyll a content in both species and carotenoids in D. antarctica plants.”
Claim · model-written summary
H2O2 decreased monogalactosyldiacylglycerol content in D. caespitosa.
- Taxon
- D. caespitosae0
- Treatment
- hydrogen peroxide (H2O2)e1
- Outcome
- monogalactosyldiacylglycerol contente0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“monogalactosyldiacylglycerol content decrease in D. caespitosa whereas only insignificant SQDG enlargement was noted in D. antarctica leaves.”
e1“The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants”
t0“Deschampsia antarctica Desv. plants to UV-B irradiation and oxidative stress”
Claim · model-written summary
H2O2 produced an insignificant increase in SQDG in D. antarctica leaves.
- Taxon
- D. antarcticaDeschampsia antarcticae0
- Organ / stage
- leavese0
- Treatment
- hydrogen peroxide (H2O2)e1
- Outcome
- SQDGe0
- Direction
- enlargemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“monogalactosyldiacylglycerol content decrease in D. caespitosa whereas only insignificant SQDG enlargement was noted in D. antarctica leaves.”
e1“The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants”
t0“Deschampsia antarctica Desv. plants to UV-B irradiation and oxidative stress”