Abstract
The experiment was conducted to study the effects of spermine on reactive oxygen species(ROS)metablism in the roots of Jingchun2(salt sensitive)cucumber seedlings under NaCl stress in hydroponics.The results showed that:The activities of superoxide dismutase(SOD),peroxidase(POD)and catalase(CAT)was stimulated,O2-·producing rate and H2O2 content were increased in the roots of cucumber seedlings under NaCl stress.Exogenous spermine application further enhanced the activities of SOD,POD and CAT,and decreased O2-· producing rate and H2O2 content.Thus it can be seen,exogenous spermine application decreased the levels of ROS by increasing the activities of antioxidant enzymes,spermine involved in the process of ROS metabolism and played an important role in alleviating the injury of cucumber seedlings under NaCl stress.
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Claims 5
Claim · model-written summary
NaCl stress stimulated SOD, POD and CAT activities in cucumber roots.
- Taxon
- cucumber
Cucumis sativuse0 - Organ / stage
- rootse0
- Treatment
- NaCl stresse0
- Outcome
- activities of superoxide dismutase(SOD),peroxidase(POD)and catalase(CAT)e0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of superoxide dismutase(SOD),peroxidase(POD)and catalase(CAT)was stimulated,O2-·producing rate and H2O2 content were increased in the roots of cucumber seedlings under NaCl stress”
Claim · model-written summary
NaCl stress increased superoxide production rate and hydrogen peroxide content in cucumber roots.
- Taxon
- cucumberCucumis sativuse0
- Organ / stage
- rootse0
- Treatment
- NaCl stresse0
- Outcome
- O2-·producing rate and H2O2 contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“O2-·producing rate and H2O2 content were increased in the roots of cucumber seedlings under NaCl stress”
Claim · model-written summary
Exogenous spermine further enhanced SOD, POD and CAT activities.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Exogenous spermine applicatione0
- Outcome
- activities of SOD,POD and CATe0
- Direction
- enhancede0
- Comparator
- NaCl Stresst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous spermine application further enhanced the activities of SOD,POD and CAT”
t0“Cucumber Seedlings under NaCl Stress”
Claim · model-written summary
Exogenous spermine decreased superoxide production rate and hydrogen peroxide content.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Exogenous spermine applicatione0
- Outcome
- O2-· producing rate and H2O2 contente0
- Direction
- decreasede0
- Comparator
- NaCl Stresst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous spermine application further enhanced the activities of SOD,POD and CAT,and decreased O2-· producing rate and H2O2 content”
t0“Cucumber Seedlings under NaCl Stress”
Claim · model-written summary
The authors attributed spermine mediated ROS reduction to increased antioxidant enzyme activities and inferred injury alleviation under NaCl stress.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- exogenous spermine applicatione0
- Outcome
- injury of cucumber seedlingse0
- Qualifier
- by increasing the activities of antioxidant enzymese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous spermine application decreased the levels of ROS by increasing the activities of antioxidant enzymes,spermine involved in the process of ROS metabolism and played an important role in alleviating the injury of cucumber seedlings under NaCl stress”
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