Abstract
Effect of active oxygen metabolism in germinated soybean seeds under cadmium stress were studied with pot culture experiment. The results showed that compared with the control, under the treatment of lower concentration cadmium, there were no significant differences in generative rate of superoxide radical (O2-), H2O2 content in germinated soybean seeds during the beginning period (1~3 d). Under the treatment of lower concentration cadmium, the activities of superoxide dismutase (SOD), catalase (CAT) were increased significantly on the 3rd day, while, they decreased and malondialdehyde (MDA) content and membrane electrolytic leakages increased significantly after four days. Compared with the control, under the treatment of higher concentration (10, 30, 50 μmol·L-1) cadmium, the generative rate of O2-, H2O2 content, MDA content, membrane electrolytic leakages increased significantly and the activities of SOD, CAT decreased during 2~6 d. Cd2+ stimulated peroxidase(POD)activity and the activity increased gradually with the increase of Cd2+ concentrations. Injury effects of Cd2+ stress on active oxygen metabolism in germinated soybean seeds could aggravate the membrane lipid peroxidation.
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Claims 8
Claim · model-written summary
Low cadmium caused no significant early difference in superoxide generation and hydrogen peroxide content.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- germinated soybean seedse0
- Treatment
- lower concentration cadmiume0
- Outcome
- generative rate of superoxide radical (O2-), H2O2 contente0
- Direction
- no significant differencese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with the control, under the treatment of lower concentration cadmium, there were no significant differences in generative rate of superoxide radical (O2-), H2O2 content in germinated soybean seeds during the beginning period (1~3 d)”
Claim · model-written summary
Low cadmium significantly raised SOD and CAT activities on day 3.
- Taxon
- soybeanGlycine maxt0
- Treatment
- lower concentration cadmiume0
- Outcome
- activities of superoxide dismutase (SOD), catalase (CAT)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the treatment of lower concentration cadmium, the activities of superoxide dismutase (SOD), catalase (CAT) were increased significantly on the 3rd day”
t0“Soybean”
Claim · model-written summary
After four days under low cadmium, SOD and CAT activities decreased.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- lower concentration cadmiume0
- Outcome
- activities of superoxide dismutase (SOD), catalase (CAT)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the treatment of lower concentration cadmium, the activities of superoxide dismutase (SOD), catalase (CAT) were increased significantly on the 3rd day, while, they decreased and malondialdehyde (MDA) content and membrane electrolytic leakages increased significantly after four days”
t0“Soybean”
Claim · model-written summary
After four days under low cadmium, MDA content and membrane electrolyte leakage rose significantly.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cadmium Stresst0
- Outcome
- malondialdehyde (MDA) content and membrane electrolytic leakagese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“they decreased and malondialdehyde (MDA) content and membrane electrolytic leakages increased significantly after four days”
t0“Effect of Cadmium Stress on Active Oxygen Metabolism in Germinated Soybean Seeds”
Claim · model-written summary
Higher cadmium significantly increased O2-, H2O2, MDA and membrane leakage during days 2–6.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- higher concentration (10, 30, 50 μmol·L-1) cadmiume0
- Outcome
- generative rate of O2-, H2O2 content, MDA contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under the treatment of higher concentration (10, 30, 50 μmol·L-1) cadmium, the generative rate of O2-, H2O2 content, MDA content, membrane electrolytic leakages increased significantly”
t0“Soybean”
Claim · model-written summary
Higher cadmium decreased SOD and CAT activities during days 2–6.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cadmium Stresst0
- Outcome
- activities of SOD, CATe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of SOD, CAT decreased during 2~6 d”
t0“Cadmium Stress on Active Oxygen Metabolism in Germinated Soybean Seeds”
Claim · model-written summary
Peroxidase activity increased with cadmium concentration.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cd2+ concentrationse0
- Outcome
- peroxidase(POD)activitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd2+ stimulated peroxidase(POD)activity and the activity increased gradually with the increase of Cd2+ concentrations”
t0“Soybean”
Claim · model-written summary
The authors infer that cadmium injury aggravates membrane lipid peroxidation.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Cd2+ stresse0
- Outcome
- membrane lipid peroxidatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Injury effects of Cd2+ stress on active oxygen metabolism in germinated soybean seeds could aggravate the membrane lipid peroxidation”
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See all 14 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.