Paper · 2009 · Ukrainian Antarctic Journal

Response reaction of Deschampsia antarctica Desv. plants to UV-B irradiation and oxidative stress

N.Yu. Taran; A.A. Okanenko; L.M. Batsmanova; et al.

7
claims
15
verbatim quotes
0
citations
1
research areas
✓
Open access

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.

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Claims 7

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

UV-B radiation changed pigment composition of Deschampsia plants

Taxon
DeschampsiaDeschampsiae0
Treatment
UV-B radiatione1
Outcome
pigment compositione1
Direction
changese1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Deschampsia
Deschampsia · Taxon · picture of the genus (one of its species)Rasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants”

✓ located verbatim in the source · abstract, characters 0–127 · show in text ↑
e1

“UV-B radiation caused changes mainly pigment composition - chlorophyll a and almost all (except violaxanthin) carotenoids”

✓ located verbatim in the source · abstract, characters 313–434 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

UV-B radiation was followed by accumulation of triacylglicerols, sulphoquinovosyl diacylglycerol and phosphatidylcholine in Deschampsia

Taxon
DeschampsiaDeschampsiae0
Treatment
UV-B radiatione1
Outcome
triacylglicerols, sulphoquinovosyl diacylglycerol and phopsphatydylcholinee2
Direction
accumulatione2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Deschampsia
Deschampsia · Taxon · picture of the genus (one of its species)Rasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants”

✓ located verbatim in the source · abstract, characters 0–127 · show in text ↑
e1

“UV-B radiation caused changes mainly pigment composition - chlorophyll a and almost all (except violaxanthin) carotenoids”

✓ located verbatim in the source · abstract, characters 313–434 · show in text ↑
e2

“Lipid composition was characterized by accumulation of triacylglicerols, sulphoquinovosyl diacylglycerol and phopsphatydylcholine while monogalacto-syldiacylglycerol quantity decreased”

✓ located verbatim in the source · abstract, characters 436–620 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

UV-B radiation decreased the monogalactosyldiacylglycerol quantity of Deschampsia

Taxon
DeschampsiaDeschampsiae0
Treatment
UV-B radiatione1
Outcome
monogalacto-syldiacylglycerol quantitye2
Direction
decreasede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Deschampsia
Deschampsia · Taxon · picture of the genus (one of its species)Rasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants”

✓ located verbatim in the source · abstract, characters 0–127 · show in text ↑
e1

“UV-B radiation caused changes mainly pigment composition - chlorophyll a and almost all (except violaxanthin) carotenoids”

✓ located verbatim in the source · abstract, characters 313–434 · show in text ↑
e2

“Lipid composition was characterized by accumulation of triacylglicerols, sulphoquinovosyl diacylglycerol and phopsphatydylcholine while monogalacto-syldiacylglycerol quantity decreased”

✓ located verbatim in the source · abstract, characters 436–620 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

H2O2 treatment increased chlorophyll a content of Deschampsia in both species

Taxon
DeschampsiaDeschampsiae0
Treatment
H2O2 treatmente3
Outcome
chlorophyll a contente3
Direction
increasee3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Deschampsia
Deschampsia · Taxon · picture of the genus (one of its species)Rasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants”

✓ located verbatim in the source · abstract, characters 0–127 · show in text ↑
e3

“H2O2 treatment cause increase chlorophyll a content in both species and carotenoids in D. antarctica plants”

✓ located verbatim in the source · abstract, characters 622–729 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

H2O2 treatment increased carotenoids in D. antarctica plants

Taxon
D. antarcticaDeschampsia antarcticae3
Treatment
H2O2 treatmente3
Outcome
carotenoidse3
Direction
increasee3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Deschampsia antarctica
Deschampsia antarctica · TaxonLomvi2 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“H2O2 treatment cause increase chlorophyll a content in both species and carotenoids in D. antarctica plants”

✓ located verbatim in the source · abstract, characters 622–729 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

H2O2 treatment decreased monogalactosyldiacylglycerol content in D. caespitosa

Taxon
D. caespitosae4
Treatment
hydrogen peroxide (H2O2)e0
Outcome
monogalactosyldiacylglycerol contente4
Direction
decreasee4

Not reportedComparator

Verbatim

e0

“The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants”

✓ located verbatim in the source · abstract, characters 0–127 · show in text ↑
e4

“Concerning glycolipid composition one could see monogalactosyldiacylglycerol content decrease in D. caespitosa whereas only insignificant SQDG enlargement was noted in D. antarctica leaves”

✓ located verbatim in the source · abstract, characters 731–919 · show in text ↑
Intervention effectobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

H2O2 treatment caused an insignificant increase of SQDG in D. antarctica leaves

Taxon
D. antarcticaDeschampsia antarcticae4
Treatment
hydrogen peroxide (H2O2)e0
Outcome
SQDGe4
Direction
enlargemente4
Qualifier
insignificante4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Deschampsia antarctica
Deschampsia antarctica · TaxonLomvi2 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of stress factors – ultraviolet radiation (UV-B) and hydrogen peroxide (H2O2) upon two species of Deschampsia plants”

✓ located verbatim in the source · abstract, characters 0–127 · show in text ↑
e4

“Concerning glycolipid composition one could see monogalactosyldiacylglycerol content decrease in D. caespitosa whereas only insignificant SQDG enlargement was noted in D. antarctica leaves”

✓ located verbatim in the source · abstract, characters 731–919 · show in text ↑