Abstract
Proper plant nutrition can be an effective strategy to alleviate the phytotoxicity and damaging effects of Cd stress on plants and to avoid its entry into the food chain. This study aimed to investigate effects of phosphorus concentrations, and pH levels in the nutrient solution on Cd uptake, growth, photosynthetic characters, total phytochelatins (PCs), and plasma membrane ATPase activity of sugar beet (Beta vulgaris L.) plants grown in sand culture. Two successive experimental studies were carried out under controlled conditions. In the first study, 10-day-old sugar beet seedlings were irrigated with a half-strength Hoagland and Arnon nutrient solution, adjusted to different pH (3.5, 5.0, 6.0, 7.0, or 8.0), and containing 0, 0.15, or 0.30 mg Cd L−1 as CdCl2. In the second study, 10-day-old sugar beet seedlings were irrigated with the same nutrient solution (pH 6), but combined with different phosphorus concentrations (0, 10, 25 and 50 µg P ml−1 as KH2PO4) and Cd levels (0, 0.15, and 0.30 mg Cd L−1 as CdCl2). The first study revealed that pH had a strong influence on Cd uptake by sugar beet roots. Cd stress significantly decreased sugar beet growth and Mg2+-ATPase activity, whereas it increased total phytochelatins (PCs). Second study indicated an antagonistic effect between P and Cd. Furthermore, phosphorus had the potential to stimulate Mg2+-ATPase activity and synthesis of photosynthetic pigments and to promote growth of sugar beet seedlings. Cadmium induced phytotoxicity in sugar beet seedlings can be alleviated by a proper pH and phosphorus nutrition.
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Claims 9
Claim · model-written summary
Nutrient solution pH strongly influenced cadmium uptake by sugar beet roots.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- pHe0
- Outcome
- Cd uptake by sugar beet rootse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The first study revealed that pH had a strong influence on Cd uptake by sugar beet roots.”
Claim · model-written summary
Cadmium stress significantly decreased sugar beet growth.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- Cd stresse0
- Outcome
- sugar beet growthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress significantly decreased sugar beet growth and Mg2+-ATPase activity, whereas it increased total phytochelatins (PCs).”
Claim · model-written summary
Cadmium stress significantly decreased Mg2+-ATPase activity.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Cd stresse0
- Outcome
- Mg2+-ATPase activitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress significantly decreased sugar beet growth and Mg2+-ATPase activity, whereas it increased total phytochelatins (PCs).”
t0“of sugar beet (Beta vulgaris L.) plants”
Claim · model-written summary
Cadmium stress increased total phytochelatins.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Cd stresse0
- Outcome
- total phytochelatins (PCs)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress significantly decreased sugar beet growth and Mg2+-ATPase activity, whereas it increased total phytochelatins (PCs).”
t0“of sugar beet (Beta vulgaris L.) plants”
Claim · model-written summary
Phosphorus and cadmium had an antagonistic effect.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Outcome
- antagonistic effect between P and Cde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Second study indicated an antagonistic effect between P and Cd.”
t0“of sugar beet (Beta vulgaris L.) plants”
Claim · model-written summary
Phosphorus stimulated Mg2+-ATPase activity.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- phosphoruse0
- Outcome
- Mg2+-ATPase activitye0
- Direction
- stimulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phosphorus had the potential to stimulate Mg2+-ATPase activity and synthesis of photosynthetic pigments and to promote growth of sugar beet seedlings.”
Claim · model-written summary
Phosphorus stimulated photosynthetic pigment synthesis.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- phosphoruse0
- Outcome
- synthesis of photosynthetic pigmentse0
- Direction
- stimulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phosphorus had the potential to stimulate Mg2+-ATPase activity and synthesis of photosynthetic pigments and to promote growth of sugar beet seedlings.”
Claim · model-written summary
Phosphorus promoted sugar beet seedling growth.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- phosphoruse0
- Outcome
- growth of sugar beet seedlingse0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phosphorus had the potential to stimulate Mg2+-ATPase activity and synthesis of photosynthetic pigments and to promote growth of sugar beet seedlings.”
Claim · model-written summary
Proper pH and phosphorus nutrition can alleviate cadmium phytotoxicity in sugar beet seedlings.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- proper pH and phosphorus nutritione0
- Outcome
- phytotoxicity in sugar beet seedlings can be alleviatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium induced phytotoxicity in sugar beet seedlings can be alleviated by a proper pH and phosphorus nutrition.”
The same questions in other papers
cadmium atom · growth · Beta vulgaris (beet)Results agree
6 papers in the same direction as this paper
- negative
- negative
- negative
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1 paper in the same direction as this paper · 1 in the opposite direction
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phosphorus · growth · Beta vulgaris (beet)Positive and negative results
15 papers in the same direction as this paper · 7 in the opposite direction
- negative
- no effect
- negative
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See all 23 papers →heavy metal · growth · Beta vulgaris (beet)Results agree
1 paper in the same direction as this paper
- negative
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.