Abstract
Plants are constantly exposed to a variety of stressors during their lives. One of such stressors is contamination of the environment with heavy metals. Lead is one of highly toxic metals and it significantly inhibits normal plant growth. The study aimed at the assessment of the degree of relieving the stress caused by 1 mM Pb(NO3)2 via different biologically active substances (AsA, GSH, PP, α-Toc, SA) on the basis of the measurement of morphological (root length, coleoptile length, fresh weight), biochemical (Pro, MDA, CAT, POX) and physiological (Chl a+b, Car) traits in 10-day leaves of spring barley of the cultivar Eunova under laboratory conditions. Pb-stress reduced the fresh weight, root length and coleoptiles of the barley tested. Lead increased lipid peroxidation and Pro content, enhanced CAT and POX activity, and significantly suppressed the photosynthetic pigments content. Among the substances used in the experiment, PP, α-Toc and GSH generally relieved the toxic effect of lead to the barley seedlings to the greatest degree.
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Claims 5
Claim · model-written summary
Pb stress reduced fresh weight, root length and coleoptile length of barley.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- Pb-stresse0
- Outcome
- fresh weight, root length and coleoptilese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Pb-stress reduced the fresh weight, root length and coleoptiles of the barley tested”
Claim · model-written summary
Lead increased lipid peroxidation and proline content in barley seedlings.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Leade0
- Outcome
- lipid peroxidation and Pro contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lead increased lipid peroxidation and Pro content”
t0“Barley Seedling”
Claim · model-written summary
Lead enhanced catalase and peroxidase activity in barley seedlings.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Leade0
- Outcome
- CAT and POX activitye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lead increased lipid peroxidation and Pro content, enhanced CAT and POX activity”
t0“Barley Seedling”
Claim · model-written summary
Lead significantly suppressed photosynthetic pigment content in barley seedlings.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Leade0
- Outcome
- photosynthetic pigments contente0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lead increased lipid peroxidation and Pro content, enhanced CAT and POX activity, and significantly suppressed the photosynthetic pigments content”
t0“Barley Seedling”
Claim · model-written summary
Of the substances tested, PP, alpha-tocopherol and GSH generally relieved the toxic effect of lead on barley seedlings to the greatest degree.
- Taxon
- barley seedlingsHordeum vulgaree0
- Treatment
- PP, α-Toc and GSHe0
- Outcome
- toxic effect of leade0
- Direction
- relievede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PP, α-Toc and GSH generally relieved the toxic effect of lead to the barley seedlings to the greatest degree”
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