Abstract
A pot experiment was conducted to study the effects of sodium nitroprusside (SNP, a nitric oxide [NO] donor) on cadmium (Cd) toxicity in ryegrass plants.In the present study, ryegrass plants subjected to Cd toxicity were treated with different concentrations of SNP (50, 100, 300 and 500 µM), SNP solution was poured into Cdcontaminated soil every seven days.Cd treatment inhibited the plants growth and the absorption of micronutrients, increased accumulation of Cd in both shoots and roots.In Cd-treated plants, the activities of antioxidant enzymes and the contents of proline, soluble protein and ascorbic acid (AsA) decreased dramatically, whereas the accumulation of superoxide anion (O 2 .-),hydrogen peroxide (H 2 O 2 ) and malondialdehyde (MDA) increased significantly.Addition of SNP significantly decreased O 2 .-,H 2 O 2 and MDA accumulation in both shoots and roots of Cd-stressed plants, decreased the transport of Cd from roots to shoots, alleviated the inhibition of Ca, Fe, Mg and Zn absorption induced by Cd and promoted the plant growth.In SNP-treated plants, the chlorophyll content, the contents of proline, soluble protein and ascorbic acid, and the activities of superoxide dismutase, peroxidase and catalase increased considerably.Addition of 300 µM SNP had the most significant alleviating effect against Cd toxicity while the addition of 500 µM SNP had no significant effect with Cd treatment.Based on these results, we concluded that the optimal concentrations of exogenous SNP could alleviate Cd induced stress and promote ryegrass plant growth.
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Claims 12
Claim · model-written summary
Cadmium inhibited ryegrass growth and micronutrient absorption.
- Taxon
- perennial ryegrass
Lolium perennet0 - Treatment
- Cd treatmente0
- Outcome
- plants growth and the absorption of micronutrientse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“Cd treatment inhibited the plants growth and the absorption of micronutrients, increased accumulation of Cd in both shoots and roots.”
Claim · model-written summary
Cadmium increased accumulation in shoots and roots.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- Cd treatmente0
- Outcome
- accumulation of Cd in both shoots and rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“Cd treatment inhibited the plants growth and the absorption of micronutrients, increased accumulation of Cd in both shoots and roots.”
Claim · model-written summary
Cadmium decreased antioxidant enzyme activities and proline, soluble protein and ascorbic acid contents.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- Cd-treatede0
- Outcome
- activities of antioxidant enzymes and the contents of proline, soluble protein and ascorbic acid (AsA)e0
- Direction
- decreased dramaticallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“In Cd-treated plants, the activities of antioxidant enzymes and the contents of proline, soluble protein and ascorbic acid (AsA) decreased dramatically”
Claim · model-written summary
Cadmium significantly increased superoxide anion, hydrogen peroxide and malondialdehyde accumulation.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- Cd-treatede0
- Outcome
- accumulation of superoxide anion (O 2 .-),hydrogen peroxide (H 2 O 2 ) and malondialdehyde (MDA)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“In Cd-treated plants, the activities of antioxidant enzymes and the contents of proline, soluble protein and ascorbic acid (AsA) decreased dramatically, whereas the accumulation of superoxide anion (O 2 .-),hydrogen peroxide (H 2 O 2 ) and malondialdehyde (MDA) increased significantly.”
Claim · model-written summary
SNP significantly decreased reactive oxygen species and MDA accumulation in shoots and roots of cadmium-stressed plants.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- Addition of SNPe0
- Outcome
- O 2 .-,H 2 O 2 and MDA accumulation in both shoots and rootse0
- Direction
- decreasede0
- Qualifier
- Cd-stressed plantse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“Addition of SNP significantly decreased O 2 .-,H 2 O 2 and MDA accumulation in both shoots and roots of Cd-stressed plants”
Claim · model-written summary
SNP decreased cadmium transport from roots to shoots.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- SNPe1
- Outcome
- transport of Cd from roots to shootse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“decreased the transport of Cd from roots to shoots”
e1“Addition of SNP significantly decreased O 2 .-,H 2 O 2 and MDA accumulation in both shoots and roots of Cd-stressed plants”
Claim · model-written summary
SNP alleviated cadmium inhibition of Ca, Fe, Mg and Zn absorption.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- Addition of SNPe0
- Outcome
- inhibition of Ca, Fe, Mg and Zn absorptione0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“Addition of SNP significantly decreased O 2 .-,H 2 O 2 and MDA accumulation in both shoots and roots of Cd-stressed plants, decreased the transport of Cd from roots to shoots, alleviated the inhibition of Ca, Fe, Mg and Zn absorption induced by Cd and promoted the plant growth.”
Claim · model-written summary
SNP promoted growth of cadmium-stressed ryegrass.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- Addition of SNPe0
- Outcome
- plant growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“Addition of SNP significantly decreased O 2 .-,H 2 O 2 and MDA accumulation in both shoots and roots of Cd-stressed plants, decreased the transport of Cd from roots to shoots, alleviated the inhibition of Ca, Fe, Mg and Zn absorption induced by Cd and promoted the plant growth.”
Claim · model-written summary
SNP increased chlorophyll, proline, soluble protein and ascorbic acid contents.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- SNP-treatede0
- Outcome
- chlorophyll content, the contents of proline, soluble protein and ascorbic acide0
- Direction
- increased considerablye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“In SNP-treated plants, the chlorophyll content, the contents of proline, soluble protein and ascorbic acid, and the activities of superoxide dismutase, peroxidase and catalase increased considerably.”
Claim · model-written summary
SNP increased superoxide dismutase, peroxidase and catalase activities.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- SNP-treatede0
- Outcome
- activities of superoxide dismutase, peroxidase and catalasee0
- Direction
- increased considerablye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“In SNP-treated plants, the chlorophyll content, the contents of proline, soluble protein and ascorbic acid, and the activities of superoxide dismutase, peroxidase and catalase increased considerably.”
Claim · model-written summary
The 300 µM SNP dose had the strongest alleviating effect against cadmium toxicity.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- 300 µM SNPe0
- Outcome
- alleviating effect against Cd toxicitye0
- Direction
- most significante0
- Comparator
- 500 µM SNPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“Addition of 300 µM SNP had the most significant alleviating effect against Cd toxicity while the addition of 500 µM SNP had no significant effect with Cd treatment.”
Claim · model-written summary
The 500 µM SNP dose had no significant effect with cadmium treatment.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- 500 µM SNPe0
- Outcome
- effecte0
- Comparator
- Cd treatmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“perennial ryegrass”
e0“Addition of 300 µM SNP had the most significant alleviating effect against Cd toxicity while the addition of 500 µM SNP had no significant effect with Cd treatment.”
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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.