Abstract
Oxidative stress is induced by a wide range of environmental factors including heavy metals stress such as Cadmium. Therefore, antioxidant resistance mechanisms may provide a strategy to enhance metal tolerance, and processes of antioxidant responses to metal stress must be clearly understood. And also identification of tolerant cultivars and study of tolerance mechanisms to heavy metal stress is necessary in order to evaluate Cadmium stress effect on super oxide dismutase, catalase and glutathione peroxydase activity, a pot experiment was done in the form of factorial in randomized complete block design (RCBD) in research greenhouse of Islamic Azad University, college of agriculture and natural resources branch of karaj. In this experiment 6 bean seeds genotypes grew in greenhouse conditions in the soil consist of CdCl2 with concentration of 0, 45, 90 mg/kg. The results of analysis of variance indicated that effect of Cd stress on above traits in different bean genotypes were significant. Thus, amount of SOD, CAT and GPX enzymes activities, in the highest level of Cd toxicity, were increased 146.2%, 96.2% and 92%, respectively in compared to control that these results can be the effects of tolerance mechanisms of plants against Cd stress. Mean comparison showed that Emerson and G-01437 genotypes have the most activity in the highest level of Cd toxicity by comparison with control. According to received results, increase in antioxidant activity in special genotypes is referred to the index of tolerance to Cadmium stress.
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Claims 6
Claim · model-written summary
At the highest Cd level, SOD activity in bean increased by 146.2% compared with control.
Verbatim
e0“amount of SOD, CAT and GPX enzymes activities, in the highest level of Cd toxicity, were increased 146.2%, 96.2% and 92%, respectively in compared to control”
e1“6 bean seeds genotypes”
Claim · model-written summary
At the highest Cd level, CAT activity in bean increased by 96.2% compared with control.
Verbatim
e0“amount of SOD, CAT and GPX enzymes activities, in the highest level of Cd toxicity, were increased 146.2%, 96.2% and 92%, respectively in compared to control”
e1“6 bean seeds genotypes”
Claim · model-written summary
At the highest Cd level, GPX activity in bean increased by 92% compared with control.
Verbatim
e0“amount of SOD, CAT and GPX enzymes activities, in the highest level of Cd toxicity, were increased 146.2%, 96.2% and 92%, respectively in compared to control”
e1“6 bean seeds genotypes”
Claim · model-written summary
The effect of Cd stress on antioxidant enzyme traits differed significantly among bean genotypes.
Not reportedComparatorDirection
Verbatim
e0“effect of Cd stress on above traits in different bean genotypes were significant”
Claim · model-written summary
Genotypes Emerson and G-01437 had the highest antioxidant activity at the highest Cd level compared with control.
Verbatim
e0“Emerson and G-01437 genotypes have the most activity in the highest level of Cd toxicity by comparison with control”
e1“6 bean seeds genotypes”
Claim · model-written summary
The authors interpret increased antioxidant activity in particular genotypes as an index of tolerance to cadmium stress.
Verbatim
e0“increase in antioxidant activity in special genotypes is referred to the index of tolerance to Cadmium stress”
e1“6 bean seeds genotypes”
The same questions in other papers
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1 in the opposite direction
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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.