Abstract
The effect of elevated zinc concentrations (1000, 2500 and 5000 µM) on the growth and photosynthetic apparatus (PSA) of white mustard ( Sinapis alba L.) was studied in a controlled environment. It was found that under zinc at 1000 and 2500 µM concentrations, the leaves area increases, the chlorophylls and carotenoids content increases, and stomatal conductance rises. No significant changes in the ratio of chlorophylls ( a / b ) and the activity of photosystem II (PS II), determined by the F v /F m index, which characterizes the potential quantum yield of photochemical activity of PS II, were found. All this allowed the plants of the experimental variants to maintain the photosynthesis rate at the control level, and also ensured their successful growth and accumulation of dry biomass under these conditions. Only an increase of zinc concentration to 5000 µM led to inhibition of root and shoot growth and a complete cessation of plant development in the cotyledons leaf phase. The results indicate a relatively high resistance of white mustard to a zinc excess and the possibility of its use to increase the fertility of agricultural soils contaminated zinc.
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Claims 10
Claim · model-written summary
At 1000 and 2500 µM zinc, leaf area increased.
- Taxon
- white mustard
Sinapis albae1 - Treatment
- zinc at 1000 and 2500 µM concentrationse0
- Outcome
- leaves areae0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under zinc at 1000 and 2500 µM concentrations, the leaves area increases”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
At 1000 and 2500 µM zinc, chlorophyll and carotenoid content increased.
- Taxon
- white mustardSinapis albae1
- Treatment
- zinc at 1000 and 2500 µM concentrationse0
- Outcome
- chlorophylls and carotenoids contente0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under zinc at 1000 and 2500 µM concentrations, the leaves area increases, the chlorophylls and carotenoids content increases”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
At 1000 and 2500 µM zinc, stomatal conductance rose.
- Taxon
- white mustardSinapis albae1
- Outcome
- stomatal conductancee0
- Direction
- risese0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomatal conductance rises”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
Chlorophyll a/b ratio showed no significant change.
- Taxon
- white mustardSinapis albae1
- Outcome
- ratio of chlorophylls ( a / b )e0
- Direction
- No significant changese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant changes in the ratio of chlorophylls ( a / b )”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
Photosystem II activity showed no significant change.
- Taxon
- white mustardSinapis albae1
- Outcome
- activity of photosystem II (PS II)e0
- Direction
- No significant changese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant changes in the ratio of chlorophylls ( a / b ) and the activity of photosystem II (PS II), determined by the F v /F m index”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
Photosynthesis rate remained at the control level in the lower zinc treatments.
- Taxon
- white mustardSinapis albae1
- Outcome
- photosynthesis ratee0
- Direction
- maintaine0
- Comparator
- control levele0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintain the photosynthesis rate at the control level”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
The lower zinc treatments allowed growth and dry biomass accumulation.
- Taxon
- white mustardSinapis albae1
- Outcome
- successful growth and accumulation of dry biomasse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ensured their successful growth and accumulation of dry biomass under these conditions”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
At 5000 µM zinc, root and shoot growth was inhibited.
- Taxon
- white mustardSinapis albae1
- Treatment
- zinc concentration to 5000 µMe0
- Outcome
- root and shoot growthe0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase of zinc concentration to 5000 µM led to inhibition of root and shoot growth”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
At 5000 µM zinc, development stopped in the cotyledon leaf phase.
- Taxon
- white mustardSinapis albae1
- Organ / stage
- cotyledons leaf phasee0
- Outcome
- plant developmente0
- Direction
- complete cessatione0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a complete cessation of plant development in the cotyledons leaf phase”
e1“white mustard ( Sinapis alba L.)”
Claim · model-written summary
The authors suggest using white mustard to improve fertility of zinc contaminated soils.
- Taxon
- white mustardSinapis albae1
- Outcome
- use to increase the fertility of agricultural soils contaminated zince0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“possibility of its use to increase the fertility of agricultural soils contaminated zinc”
e1“white mustard ( Sinapis alba L.)”
The same questions in other papers
zinc atom · physiology: pigments · Sinapis alba (white mustard)Results differ
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2 papers in the same direction as this paper · 2 in the opposite direction
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See all 5 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.