Abstract
Aim. The goal of this study was to study the interaction of chronic ultraviolet (UV-B) radiation and cytokinin 6-benzylaminopurine (BAP) in the adaptation of pea plants (Pisum sativum L.) to the effect of chronic UV-B irradiation. Methods. Pea plants cultivar Aronis were sprayed by BAP solution in concentration 10-5 M before the effect of chronic UV-B radiation at doses of 6 kJ/m2 per day with a power of 1 W/m2 for 12 days. During this time, the growth of plants and their mass were measured, the content of photosynthetic pigments and endogenous hydrogen peroxide (HP) were determined in the leaves. Results. It was established that the effect of chronic UV-B radiation at a dose of 6 kJ/m2 per day on pea plants caused a delay in plant mass accumulation, synthesis of photosynthetic pigments and increasing HP content in leaves. Treatment plants by BAP increased mass, stimulated synthesis of photosynthetic pigments, reduced the content of HP in the leaves of pea plants during the UV-B radiation. Conclusions. It was shown that treatment of pea plants by BAP caused the adaptation of pea plants at the beginning of UV-B radiation. Cytokinins are capable to detoxify reactive oxygen spices, stimulate formation of photosynthetic complex that promotes growth of pea plants under chronic UV-B radiation. Keywords: UV-B, BAP, Pisum sativum L., photosynthetic pigments, adaptation.
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Claims 6
Claim · model-written summary
Chronic UV-B radiation delayed plant mass accumulation and synthesis of photosynthetic pigments in pea plants.
- Taxon
- pea plants
Lathyrus oleraceust0 - Treatment
- chronic UV-B radiation at a dose of 6 kJ/m2 per daye2
- Outcome
- plant mass accumulation, synthesis of photosynthetic pigmentse2
- Direction
- delaye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“adaptive reactions of pea plants”
e2“effect of chronic UV-B radiation at a dose of 6 kJ/m2 per day on pea plants caused a delay in plant mass accumulation, synthesis of photosynthetic pigments and increasing HP content in leaves”
Claim · model-written summary
Chronic UV-B radiation increased hydrogen peroxide content in pea leaves.
- Taxon
- pea plantsLathyrus oleraceust0
- Treatment
- chronic UV-B radiation at a dose of 6 kJ/m2 per daye2
- Outcome
- HP content in leavese2
- Direction
- increasinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“adaptive reactions of pea plants”
e2“effect of chronic UV-B radiation at a dose of 6 kJ/m2 per day on pea plants caused a delay in plant mass accumulation, synthesis of photosynthetic pigments and increasing HP content in leaves”
Claim · model-written summary
BAP treatment increased plant mass of pea plants under UV-B radiation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“adaptive reactions of pea plants”
e1“Pea plants cultivar Aronis were sprayed by BAP solution in concentration 10-5 M”
e3“Treatment plants by BAP increased mass, stimulated synthesis of photosynthetic pigments, reduced the content of HP in the leaves of pea plants during the UV-B radiation”
Claim · model-written summary
BAP treatment stimulated synthesis of photosynthetic pigments in pea plants under UV-B radiation.
- Taxon
- pea plantsLathyrus oleraceust0
- Material
- Aronise1
- Treatment
- BAPe3
- Outcome
- synthesis of photosynthetic pigmentse3
- Direction
- stimulatede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“adaptive reactions of pea plants”
e1“Pea plants cultivar Aronis were sprayed by BAP solution in concentration 10-5 M”
e3“Treatment plants by BAP increased mass, stimulated synthesis of photosynthetic pigments, reduced the content of HP in the leaves of pea plants during the UV-B radiation”
Claim · model-written summary
BAP treatment reduced hydrogen peroxide content in pea leaves under UV-B radiation.
- Taxon
- pea plantsLathyrus oleraceust0
- Material
- Aronise1
- Treatment
- BAPe3
- Outcome
- content of HP in the leavese3
- Direction
- reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“adaptive reactions of pea plants”
e1“Pea plants cultivar Aronis were sprayed by BAP solution in concentration 10-5 M”
e3“Treatment plants by BAP increased mass, stimulated synthesis of photosynthetic pigments, reduced the content of HP in the leaves of pea plants during the UV-B radiation”
Claim · model-written summary
Cytokinins detoxify reactive oxygen species and stimulate photosynthetic complex formation, which promotes growth of pea plants under UV-B.
- Taxon
- pea plantsLathyrus oleraceust0
- Compound
- Cytokininse4
- Outcome
- growth of pea plantse4
- Qualifier
- detoxify reactive oxygen spicese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“adaptive reactions of pea plants”
e4“Cytokinins are capable to detoxify reactive oxygen spices, stimulate formation of photosynthetic complex that promotes growth of pea plants under chronic UV-B radiation”
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