Abstract
Arsenic contamination is one of the most important compounds all over the world. Arsenic in different ways, including the formation of reactive oxygen species and membrane lipid peroxidation impairs growth of plants. In this study, the effect of arsenic and sodium nitroprusside (SNP) were evaluated on soybean. Soybean at four leaf stage was treated with different concentrations of arsenic (0, 150 and 300 mM) and SNP (0 and 100 mM), and then concentrations of hydrogen peroxide, proline, malondialdehyde and activity of antioxidant enzymes in its shoot were measured. The results showed that increasing concentration of arsenic in Hoagland solution reduced total chlorophyll content in the shoot and increased the activity of catalase and peroxidase significantly. It was also observed that treating plants with arsenic increased hydrogen peroxid accumulation which resulted in peroxidation of membrane lipids. Higher malondialdehyde content confirmed this result. Using SNP in the medium containing arsenic increased total chlorophyll content, activities of guaiacol peroxidase enzyme and ascorbate peroxidase, significantly. However, the catalase activity in this case decreased. Thus it can be concluded that using SNP, would reduce effectively the damage of oxidation.
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Claims 8
Claim · model-written summary
Increasing arsenic concentration in Hoagland solution reduced total chlorophyll content in soybean shoots.
- Taxon
- soybean
Glycine maxt0 - Treatment
- increasing concentration of arsenic in Hoagland solutione0
- Outcome
- total chlorophyll content in the shoote0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SOYBEAN”
e0“increasing concentration of arsenic in Hoagland solution reduced total chlorophyll content in the shoot and increased the activity of catalase and peroxidase significantly”
Claim · model-written summary
Increasing arsenic concentration significantly increased the activity of catalase and peroxidase in soybean shoots.
- Taxon
- soybeanGlycine maxt0
- Treatment
- increasing concentration of arsenic in Hoagland solutione0
- Outcome
- activity of catalase and peroxidasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SOYBEAN”
e0“increasing concentration of arsenic in Hoagland solution reduced total chlorophyll content in the shoot and increased the activity of catalase and peroxidase significantly”
Claim · model-written summary
Arsenic treatment increased hydrogen peroxide accumulation in soybean, which resulted in peroxidation of membrane lipids.
- Taxon
- soybeanGlycine maxt0
- Treatment
- treating plants with arsenice0
- Outcome
- hydrogen peroxid accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SOYBEAN”
e0“treating plants with arsenic increased hydrogen peroxid accumulation which resulted in peroxidation of membrane lipids”
Claim · model-written summary
Arsenic-treated soybean plants had higher malondialdehyde content, confirming membrane lipid peroxidation.
- Taxon
- soybeanGlycine maxt0
- Treatment
- treating plants with arsenice0
- Outcome
- malondialdehyde contente1
- Direction
- Highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SOYBEAN”
e0“treating plants with arsenic increased hydrogen peroxid accumulation which resulted in peroxidation of membrane lipids”
e1“Higher malondialdehyde content confirmed this result”
Claim · model-written summary
Sodium nitroprusside in arsenic-containing medium significantly increased total chlorophyll content in soybean.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SNP in the medium containing arsenice0
- Outcome
- total chlorophyll contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SOYBEAN”
e0“Using SNP in the medium containing arsenic increased total chlorophyll content, activities of guaiacol peroxidase enzyme and ascorbate peroxidase, significantly”
Claim · model-written summary
Sodium nitroprusside in arsenic-containing medium significantly increased the activities of guaiacol peroxidase and ascorbate peroxidase in soybean.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SNP in the medium containing arsenice0
- Outcome
- activities of guaiacol peroxidase enzyme and ascorbate peroxidasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SOYBEAN”
e0“Using SNP in the medium containing arsenic increased total chlorophyll content, activities of guaiacol peroxidase enzyme and ascorbate peroxidase, significantly”
Claim · model-written summary
With sodium nitroprusside in arsenic-containing medium, catalase activity decreased.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SNP in the medium containing arsenice0
- Outcome
- catalase activitye1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SOYBEAN”
e0“Using SNP in the medium containing arsenic increased total chlorophyll content, activities of guaiacol peroxidase enzyme and ascorbate peroxidase, significantly”
e1“However, the catalase activity in this case decreased”
Claim · model-written summary
The authors conclude that SNP would effectively reduce oxidative damage in arsenic-stressed soybean.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SNPe0
- Outcome
- damage of oxidatione0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SOYBEAN”
e0“it can be concluded that using SNP, would reduce effectively the damage of oxidation”
The same questions in other papers
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8 of 9 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.