Abstract
In the present study, the cadmium’s effect on anti-oxidative enzymes in tomato (Lycopersicon esculentum) plants was evaluated. Plants treated with increasingly CdCl2concentrations (0, 20, 40, 80, 100 and 200 �M respectively) were grown in a basic nutrient solution for 7 days. APX (Ascorbate Peroxidase) and GPX (Guaigol Peroxidase) activities showed to increase below 100 �M concentration after treatment. In excessive concentration however, more than determined level, a significant decrease in the enzymes activities was determined. The increase in enzymatic activity can be associated with induction of oxidative stress by cadmium treatment. Excessive calcium displayed also low APX and GPX activities, which were virtually the same activity levels of control plants. However, it should be note that concentration more than 80 �m of Cd resulted in decreasing of APX and GPX activity. The enzymatic activity of GSH followed in the presence of Cd showed a significant increase by 80 �M of Cd then the activity showed decreasing. Calcium treatment resulted in impairing of GSH stimulation in the presence of Cd conditions. Eventually, Cd treatment resulted in decline in GST activity that was significantly increased in the presence of calcium, suggesting stimulation of antioxidant enzymatic activities. Therefore, accumulation of Cd can be associated with oxidative stress, which may be inhibited and reduced its adverse effects by calcium treatment in the cell culture.
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Claims 8
Claim · model-written summary
APX and GPX activities increased with CdCl2 below 100 µM.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- CdCl2e2
- Outcome
- APX (Ascorbate Peroxidase) and GPX (Guaigol Peroxidase) activitiese1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) plants”
e2“Plants treated with increasingly CdCl2concentrations”
e1“APX (Ascorbate Peroxidase) and GPX (Guaigol Peroxidase) activities showed to increase below 100 �M concentration after treatment”
Claim · model-written summary
APX and GPX activities decreased at more than 80 µM Cd.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- more than 80 �m of Cde3
- Outcome
- APX and GPX activitye3
- Direction
- decreasinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) plants”
e3“concentration more than 80 �m of Cd resulted in decreasing of APX and GPX activity”
Claim · model-written summary
GSH enzyme activity significantly increased at 80 µM Cd and then decreased.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Cde4
- Outcome
- enzymatic activity of GSHe4
- Direction
- significant increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) plants”
e4“The enzymatic activity of GSH followed in the presence of Cd showed a significant increase by 80 �M of Cd then the activity showed decreasing”
Claim · model-written summary
Calcium treatment impaired GSH stimulation under Cd.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Calcium treatmente5
- Outcome
- GSH stimulatione5
- Direction
- impairinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) plants”
e5“Calcium treatment resulted in impairing of GSH stimulation in the presence of Cd conditions”
Claim · model-written summary
Cd treatment declined GST activity.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Cd treatmente6
- Outcome
- GST activitye6
- Direction
- declinee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) plants”
e6“Cd treatment resulted in decline in GST activity that was significantly increased in the presence of calcium”
Claim · model-written summary
GST activity was significantly increased by calcium in the presence of Cd.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- presence of calciume6
- Outcome
- GST activitye6
- Direction
- significantly increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) plants”
e6“Cd treatment resulted in decline in GST activity that was significantly increased in the presence of calcium”
Claim · model-written summary
Cd accumulation may be associated with oxidative stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- accumulation of Cde7
- Outcome
- oxidative stresse7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) plants”
e7“accumulation of Cd can be associated with oxidative stress”
Claim · model-written summary
Calcium treatment may reduce the adverse effects of Cd-induced oxidative stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- calcium treatmente7
- Outcome
- adverse effectse7
- Direction
- reducede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in tomato (Lycopersicon esculentum) plants”
e7“which may be inhibited and reduced its adverse effects by calcium treatment”
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