Abstract
The effects of ultraviolet-C (UV-C) irradiation and polyamine spermine on the content of some stress marker and non-enzymatic antioxidants in leaves of young pea plants were investigated. UV-C irradiation led to a decrease in pea fresh weight, the content of leaf pigments and free proline, accompanied with an increase in malondialdehyde. The initial augmentation in the free thiol levels was transient in UV-C treated plants and finally a substantial decrease was found. Spermine led to a significant augmentation of free thiols and proline content along with a decline in total phenols, but these alterations diminished during the experimental period. Based on comparative analyses of the results obtained for plants treated with UV-C and polyamine, it could be concluded that preliminary application of spermine protects pea plants against irradiation, by maintaining normal plant growth, stabilizing cell membranes and activating non-enzymatic antioxidants.
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Claims 7
Claim · model-written summary
UV-C decreased pea fresh weight, leaf pigments and free proline.
- Taxon
- pea
Lathyrus oleraceuse0 - Treatment
- UV-C irradiatione0
- Outcome
- pea fresh weight, the content of leaf pigments and free prolinee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-C irradiation led to a decrease in pea fresh weight, the content of leaf pigments and free proline, accompanied with an increase in malondialdehyde.”
Claim · model-written summary
UV-C increased malondialdehyde.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- UV-C irradiatione0
- Outcome
- malondialdehydee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-C irradiation led to a decrease in pea fresh weight, the content of leaf pigments and free proline, accompanied with an increase in malondialdehyde.”
Claim · model-written summary
UV-C initially increased free thiols transiently.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- UV-Ce0
- Outcome
- free thiol levelse0
- Direction
- augmentatione0
- Qualifier
- transiente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The initial augmentation in the free thiol levels was transient in UV-C treated plants and finally a substantial decrease was found.”
t0“Pea”
Claim · model-written summary
Free thiols ultimately decreased substantially after UV-C treatment.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- UV-Ce0
- Outcome
- free thiol levelse0
- Direction
- decreasee0
- Qualifier
- finallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The initial augmentation in the free thiol levels was transient in UV-C treated plants and finally a substantial decrease was found.”
t0“Pea”
Claim · model-written summary
Spermine significantly increased free thiols and proline, with alterations diminishing over time.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- Sperminee0
- Outcome
- free thiols and proline contente0
- Direction
- augmentatione0
- Qualifier
- these alterations diminished during the experimental periode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spermine led to a significant augmentation of free thiols and proline content along with a decline in total phenols, but these alterations diminished during the experimental period.”
t0“Pea”
Claim · model-written summary
Spermine decreased total phenols, with alterations diminishing over time.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- Sperminee0
- Outcome
- total phenolse0
- Direction
- declinee0
- Qualifier
- these alterations diminished during the experimental periode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spermine led to a significant augmentation of free thiols and proline content along with a decline in total phenols, but these alterations diminished during the experimental period.”
t0“Pea”
Claim · model-written summary
The authors infer that spermine pretreatment protects pea by maintaining growth, stabilizing membranes and activating non-enzymatic antioxidants.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- preliminary application of sperminee0
- Outcome
- protects pea plants against irradiatione0
- Qualifier
- maintaining normal plant growth, stabilizing cell membranes and activating non-enzymatic antioxidantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it could be concluded that preliminary application of spermine protects pea plants against irradiation, by maintaining normal plant growth, stabilizing cell membranes and activating non-enzymatic antioxidants.”
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See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.