Abstract
Seed priming with hormones has been an efficient method for increasing seed vigor as well as seedling growth under stressful conditions. These responses have in the past been attributed to the activation of antioxidant systems in a range of crops. The results described in this work show that hormonal priming with methyl jasmonate, salicylic acid or CEPA (chloroethylphosphonic acid), an ethylene (ET) releaser, does not induce the antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductase in maize seedlings subjected to salt stress. The enhanced biomass of maize seedlings under salt stress that was observed only from ET priming indicates that the stress tolerance in maize from ethylene priming is a fundamental process for stress tolerance acquisition, which is explained, however, by other biochemical mechanisms but not by changes in the antioxidant system.
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Claims 4
Claim · model-written summary
Methyl jasmonate priming did not induce four antioxidant enzyme activities under salt stress.
- Treatment
- methyl jasmonatee0
- Outcome
- antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductasee0
- Direction
- does not inducee0
- Qualifier
- salt stresse0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hormonal priming with methyl jasmonate, salicylic acid or CEPA (chloroethylphosphonic acid), an ethylene (ET) releaser, does not induce the antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductase in maize seedlings subjected to salt stress”
Claim · model-written summary
Salicylic acid priming did not induce four antioxidant enzyme activities under salt stress.
- Treatment
- salicylic acide0
- Outcome
- antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductasee0
- Direction
- does not inducee0
- Qualifier
- salt stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hormonal priming with methyl jasmonate, salicylic acid or CEPA (chloroethylphosphonic acid), an ethylene (ET) releaser, does not induce the antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductase in maize seedlings subjected to salt stress”
Claim · model-written summary
CEPA priming did not induce four antioxidant enzyme activities under salt stress.
- Treatment
- CEPA (chloroethylphosphonic acid)e0
- Outcome
- antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductasee0
- Direction
- does not inducee0
- Qualifier
- salt stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hormonal priming with methyl jasmonate, salicylic acid or CEPA (chloroethylphosphonic acid), an ethylene (ET) releaser, does not induce the antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductase in maize seedlings subjected to salt stress”
Claim · model-written summary
Ethylene priming alone enhanced maize seedling biomass under salt stress.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The enhanced biomass of maize seedlings under salt stress that was observed only from ET priming”
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