Abstract
Cadmium(Cd)was a highly toxic and persistent environmental poison,its increasing level in soil environment exerted a wild range of adverse effects on plants and even the healthy of human beings by food chains.In the study,the effects of Cd at different concentrations on wheat seeds germination,seedlings growth and the activities of antioxidant enzymes were studied.The results showed the germination percentage,germination potential and shoot growth were not significantly inhibited by cadmium,especially at low Cd concentrations.However,germination index,vigor index,root growth were restrained evidently with the increase of Cd stress.The content of MDA and activities of G-POD in root and shoot increased significantly with the increasing of Cd concentration.The activities of SOD first increased and then decreased as the Cd concentration increased and it was slight lower than that of control in root under 1 000 μmol/L Cd stress.However,the activities of CAT and APX were decreased with concentration-dependent manner,ie,the higher concentration of cadmium,the greater changes the enzyme activities,suggesting oxidative damage and membrane lipid peroxidation occurred in seedlings,and it might be the important reason for the growth inhibition of roots subjected to cadmium stress.
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Claims 6
Claim · model-written summary
Cadmium did not significantly inhibit wheat germination percentage, germination potential or shoot growth.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- cadmiume0
- Outcome
- germination percentage,germination potential and shoot growthe0
- Direction
- not significantly inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the germination percentage,germination potential and shoot growth were not significantly inhibited by cadmium,especially at low Cd concentrations.”
t0“Wheat”
Claim · model-written summary
Increasing Cd stress restrained germination index, vigor index and root growth.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- increase of Cd stresse0
- Outcome
- germination index,vigor index,root growthe0
- Direction
- restrainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination index,vigor index,root growth were restrained evidently with the increase of Cd stress.”
t0“Wheat”
Claim · model-written summary
MDA content and G-POD activities in root and shoot increased significantly with Cd concentration.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- root and shoote0
- Treatment
- increasing of Cd concentratione0
- Outcome
- content of MDA and activities of G-PODe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of MDA and activities of G-POD in root and shoot increased significantly with the increasing of Cd concentration.”
t0“Wheat”
Claim · model-written summary
SOD activities first rose and then fell as Cd concentration increased.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Cd concentratione0
- Outcome
- activities of SODe0
- Direction
- first increased and then decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of SOD first increased and then decreased as the Cd concentration increased”
t0“Wheat”
Claim · model-written summary
Root SOD activity at 1 000 μmol/L Cd was slightly below control.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- roote0
- Treatment
- 1 000 μmol/L Cd stresse0
- Outcome
- activities of SODe1
- Direction
- slight lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was slight lower than that of control in root under 1 000 μmol/L Cd stress”
e1“The activities of SOD first increased and then decreased as the Cd concentration increased”
t0“Wheat”
Claim · model-written summary
CAT and APX activities decreased with increasing cadmium concentration.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- cadmiume0
- Outcome
- activities of CAT and APXe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of CAT and APX were decreased with concentration-dependent manner,ie,the higher concentration of cadmium,the greater changes the enzyme activities”
t0“Wheat”
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