Abstract
A pot experiment was conducted to investigate the effect of presowing seed treatment with H2O2 (20, 40, 60, 80, 100, 120, and 140 mM) in maize grown under water-deficit conditions (moisture maintained at 100% and 60% field capacity). Higher germination rates were recorded when seeds were soaked in 140 mM of H2O2. A marked decline in photosynthetic pigments and increase in the concentration of proteins, H2O2, malondialdehyde (MDA), and ascorbic acid (AsA) were recorded in maize plants under water-deficit conditions. Drought stress caused a decline in potassium (K+) and calcium (Ca2+) contents while an increase in iron (Fe2+) and phosphorous (P) contents was recorded in maize plants. Activities of different antioxidant enzymes (superoxide dismutase, peroxidase, and catalase) were also greatly enhanced in response to water-limited supply. Among different concentrations of H2O2 (20, 40, 60, 80, 100, 120, and 140 mM), seed treatment with 140 mM of H2O2 greatly reduced degradation of photosynthetic pigments, decreased MDA levels, and increased the concentration of AsA and activities of different antioxidant enzymes under water-deficit conditions. Hydrogen peroxide treatment stimulated the antioxidant system that resulted in the induction of drought tolerance of maize plants in terms of higher shoot and root fresh and dry masses.
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Claims 10
Claim · model-written summary
Higher germination rates were recorded when seeds were soaked in 140 mM of H2O2.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher germination rates were recorded when seeds were soaked in 140 mM of H2O2.”
t0“maize (Zea maysL.)”
Claim · model-written summary
A marked decline in photosynthetic pigments and increase in the concentration of proteins, H2O2, malondialdehyde (MDA), and ascorbic acid (AsA) were recorded in maize plants under water-deficit conditions.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A marked decline in photosynthetic pigments and increase in the concentration of proteins, H2O2, malondialdehyde (MDA), and ascorbic acid (AsA) were recorded in maize plants under water-deficit conditions.”
t0“maize (Zea maysL.)”
Claim · model-written summary
A marked decline in photosynthetic pigments and increase in the concentration of proteins, H2O2, malondialdehyde (MDA), and ascorbic acid (AsA) were recorded in maize plants under water-deficit conditions.
- Treatment
- water-deficit conditionse0
- Outcome
- concentration of proteins, H2O2, malondialdehyde (MDA), and ascorbic acid (AsA)e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A marked decline in photosynthetic pigments and increase in the concentration of proteins, H2O2, malondialdehyde (MDA), and ascorbic acid (AsA) were recorded in maize plants under water-deficit conditions.”
t0“maize (Zea maysL.)”
Claim · model-written summary
Drought stress caused a decline in potassium (K+) and calcium (Ca2+) contents while an increase in iron (Fe2+) and phosphorous (P) contents was recorded in maize plants.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress caused a decline in potassium (K+) and calcium (Ca2+) contents while an increase in iron (Fe2+) and phosphorous (P) contents was recorded in maize plants.”
t0“maize (Zea maysL.)”
Claim · model-written summary
Drought stress caused a decline in potassium (K+) and calcium (Ca2+) contents while an increase in iron (Fe2+) and phosphorous (P) contents was recorded in maize plants.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress caused a decline in potassium (K+) and calcium (Ca2+) contents while an increase in iron (Fe2+) and phosphorous (P) contents was recorded in maize plants.”
t0“maize (Zea maysL.)”
Claim · model-written summary
Activities of different antioxidant enzymes (superoxide dismutase, peroxidase, and catalase) were also greatly enhanced in response to water-limited supply.
- Treatment
- water-limited supplye0
- Outcome
- Activities of different antioxidant enzymes (superoxide dismutase, peroxidase, and catalase)e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activities of different antioxidant enzymes (superoxide dismutase, peroxidase, and catalase) were also greatly enhanced in response to water-limited supply.”
t0“maize (Zea maysL.)”
Claim · model-written summary
seed treatment with 140 mM of H2O2 greatly reduced degradation of photosynthetic pigments, decreased MDA levels, and increased the concentration of AsA and activities of different antioxidant enzymes under water-deficit conditions.
- Treatment
- seed treatment with 140 mM of H2O2e0
- Outcome
- degradation of photosynthetic pigmentse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment with 140 mM of H2O2 greatly reduced degradation of photosynthetic pigments, decreased MDA levels, and increased the concentration of AsA and activities of different antioxidant enzymes under water-deficit conditions.”
t0“maize (Zea maysL.)”
Claim · model-written summary
seed treatment with 140 mM of H2O2 greatly reduced degradation of photosynthetic pigments, decreased MDA levels, and increased the concentration of AsA and activities of different antioxidant enzymes under water-deficit conditions.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment with 140 mM of H2O2 greatly reduced degradation of photosynthetic pigments, decreased MDA levels, and increased the concentration of AsA and activities of different antioxidant enzymes under water-deficit conditions.”
t0“maize (Zea maysL.)”
Claim · model-written summary
seed treatment with 140 mM of H2O2 greatly reduced degradation of photosynthetic pigments, decreased MDA levels, and increased the concentration of AsA and activities of different antioxidant enzymes under water-deficit conditions.
- Treatment
- seed treatment with 140 mM of H2O2e0
- Outcome
- concentration of AsA and activities of different antioxidant enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment with 140 mM of H2O2 greatly reduced degradation of photosynthetic pigments, decreased MDA levels, and increased the concentration of AsA and activities of different antioxidant enzymes under water-deficit conditions.”
t0“maize (Zea maysL.)”
Claim · model-written summary
Hydrogen peroxide treatment stimulated the antioxidant system that resulted in the induction of drought tolerance of maize plants in terms of higher shoot and root fresh and dry masses.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hydrogen peroxide treatment stimulated the antioxidant system that resulted in the induction of drought tolerance of maize plants in terms of higher shoot and root fresh and dry masses.”
t0“maize (Zea maysL.)”
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