Abstract
Rapid industrialization and over-use of agrochemicals may lead to cadmium (Cd) contamination in agricultural soil, posing serious threat to human health. In recent times, application of plant nutrients and other growth promoting substances, like, nanoparticles (nZVI), silicon, salicylic acid were reported to have ameliorated Cd toxicity, in this regard, nitrogen (N) amendment can be a promising technique to ameliorate Cd toxicity as, N is an essential macronutrient responsible for plant growth and development. In the present study, seven days old seedlings of Oryza sativa L. cv. Lalat were co-treated with 10 µM CdCl2 and two different nitrogen supplements (Calcium nitrate and Ammonium acetate) separately to evaluate its ameliorating potential. It was observed that, Cd stress impaired plant vigor, biomass, RWC, nitrogen-containing components and non-enzymatic antioxidants causing significant reduction in photosynthesis and N-assimilation, indicating sensitivity of the cultivar to Cd stress. Cd stress also enhanced lipid peroxidation, enzymatic-antioxidant activity, proline and non-protein thiol accumulation. N-supplementation to Cd stressed plants rescued plant growth, biomass, protein content and nitrogen containing compounds leading to the upregulation of photosynthesis and nitrogen assimilation. N amendment was found to downregulate lipid peroxidation, enzymatic antioxidant activity, proline and non-protein thiol content and upregulate non-enzymatic antioxidant. Agronomical parameters and yield also improved significantly by N supplementation as compared to Cd stressed plants. Supplementation with N salts also improved grain quality by enhancing grain nutrients and reduced grain Cd by decreasing bioavailable Cd in soil, thereby reducing daily Cd intake and cancer risk. Among the two N-supplements, ammonium acetate showed better ameliorating effect compared to calcium nitrate.
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Claims 20
Claim · model-written summary
Cd stress reduced plant vigor.
- Taxon
- rice
Oryza sativat0 - Treatment
- Cd stresse0
- Outcome
- plant vigore0
- Direction
- impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress impaired plant vigor, biomass, RWC, nitrogen-containing components and non-enzymatic antioxidants causing significant reduction in photosynthesis and N-assimilation, indicating sensitivity of the cultivar to Cd stress.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress reduced biomass.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- biomasse0
- Direction
- impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress impaired plant vigor, biomass, RWC, nitrogen-containing components and non-enzymatic antioxidants causing significant reduction in photosynthesis and N-assimilation, indicating sensitivity of the cultivar to Cd stress.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress reduced RWC.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- RWCe0
- Direction
- impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress impaired plant vigor, biomass, RWC, nitrogen-containing components and non-enzymatic antioxidants causing significant reduction in photosynthesis and N-assimilation, indicating sensitivity of the cultivar to Cd stress.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress reduced nitrogen-containing components.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- nitrogen-containing componentse0
- Direction
- impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress impaired plant vigor, biomass, RWC, nitrogen-containing components and non-enzymatic antioxidants causing significant reduction in photosynthesis and N-assimilation, indicating sensitivity of the cultivar to Cd stress.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress reduced non-enzymatic antioxidants.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- non-enzymatic antioxidantse0
- Direction
- impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress impaired plant vigor, biomass, RWC, nitrogen-containing components and non-enzymatic antioxidants causing significant reduction in photosynthesis and N-assimilation, indicating sensitivity of the cultivar to Cd stress.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress reduced photosynthesis.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- photosynthesise0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress impaired plant vigor, biomass, RWC, nitrogen-containing components and non-enzymatic antioxidants causing significant reduction in photosynthesis and N-assimilation, indicating sensitivity of the cultivar to Cd stress.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress reduced N-assimilation.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- N-assimilatione0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress impaired plant vigor, biomass, RWC, nitrogen-containing components and non-enzymatic antioxidants causing significant reduction in photosynthesis and N-assimilation, indicating sensitivity of the cultivar to Cd stress.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress enhanced lipid peroxidation.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- lipid peroxidatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress also enhanced lipid peroxidation, enzymatic-antioxidant activity, proline and non-protein thiol accumulation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress enhanced enzymatic-antioxidant activity.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- enzymatic-antioxidant activitye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress also enhanced lipid peroxidation, enzymatic-antioxidant activity, proline and non-protein thiol accumulation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
Cd stress enhanced proline and non-protein thiol accumulation.
- Taxon
- riceOryza sativat0
- Treatment
- Cd stresse0
- Outcome
- proline and non-protein thiol accumulatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd stress also enhanced lipid peroxidation, enzymatic-antioxidant activity, proline and non-protein thiol accumulation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N supplementation improved plant growth in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N-supplementatione0
- Outcome
- plant growthe0
- Direction
- rescuede0
- Comparator
- Cd stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N-supplementation to Cd stressed plants rescued plant growth, biomass, protein content and nitrogen containing compounds leading to the upregulation of photosynthesis and nitrogen assimilation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N supplementation improved biomass in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N-supplementatione0
- Outcome
- biomasse0
- Direction
- rescuede0
- Comparator
- Cd stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N-supplementation to Cd stressed plants rescued plant growth, biomass, protein content and nitrogen containing compounds leading to the upregulation of photosynthesis and nitrogen assimilation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N supplementation improved protein content in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N-supplementatione0
- Outcome
- protein contente0
- Direction
- rescuede0
- Comparator
- Cd stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N-supplementation to Cd stressed plants rescued plant growth, biomass, protein content and nitrogen containing compounds leading to the upregulation of photosynthesis and nitrogen assimilation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N supplementation improved nitrogen containing compounds in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N-supplementatione0
- Outcome
- nitrogen containing compoundse0
- Direction
- rescuede0
- Comparator
- Cd stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N-supplementation to Cd stressed plants rescued plant growth, biomass, protein content and nitrogen containing compounds leading to the upregulation of photosynthesis and nitrogen assimilation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N supplementation improved photosynthesis in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N-supplementatione0
- Outcome
- photosynthesise0
- Direction
- upregulatione0
- Comparator
- Cd stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N-supplementation to Cd stressed plants rescued plant growth, biomass, protein content and nitrogen containing compounds leading to the upregulation of photosynthesis and nitrogen assimilation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N supplementation improved nitrogen assimilation in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N-supplementatione0
- Outcome
- nitrogen assimilatione0
- Direction
- upregulatione0
- Comparator
- Cd stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N-supplementation to Cd stressed plants rescued plant growth, biomass, protein content and nitrogen containing compounds leading to the upregulation of photosynthesis and nitrogen assimilation.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N amendment changed lipid peroxidation in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N amendmente0
- Outcome
- lipid peroxidatione0
- Direction
- downregulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N amendment was found to downregulate lipid peroxidation, enzymatic antioxidant activity, proline and non-protein thiol content and upregulate non-enzymatic antioxidant.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N amendment changed enzymatic antioxidant activity in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N amendmente0
- Outcome
- enzymatic antioxidant activitye0
- Direction
- downregulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N amendment was found to downregulate lipid peroxidation, enzymatic antioxidant activity, proline and non-protein thiol content and upregulate non-enzymatic antioxidant.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N amendment changed proline and non-protein thiol content in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N amendmente0
- Outcome
- proline and non-protein thiol contente0
- Direction
- downregulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N amendment was found to downregulate lipid peroxidation, enzymatic antioxidant activity, proline and non-protein thiol content and upregulate non-enzymatic antioxidant.”
t0“rice (Oryza sativa L.) cv. Lalat”
Claim · model-written summary
N amendment changed non-enzymatic antioxidant in Cd stressed rice.
- Taxon
- riceOryza sativat0
- Treatment
- N amendmente0
- Outcome
- non-enzymatic antioxidante0
- Direction
- upregulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N amendment was found to downregulate lipid peroxidation, enzymatic antioxidant activity, proline and non-protein thiol content and upregulate non-enzymatic antioxidant.”
t0“rice (Oryza sativa L.) cv. Lalat”
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See all 69 papers →8 of 18 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.