Abstract
Two cucumber cultivars (Cucumis sativus L.) exposed to three cadmium (Cd) concentrations (0, 1, and 5 μM) were supplemented or un-supplemented with silicon (Si) (1 mM). Exposure to 1 μM Cd had no effect on shoot and root dry mass, whereas exposure to 5 μM Cd significantly reduced plant growth. Addition of Si stimulated the growth of Cd-treated cucumber. Exposure to 5 μM Cd significantly increased shoot Cd concentration and decreased iron (Fe) and zinc (Zn) concentration. Plants supplied with Si had lower Cd and higher Zn and Fe compared with unsupplied plants. Exposure to Cd resulted in a higher production of malondialdehyde (MDA). Si nutrition partly ameliorated lipid peroxidation induced by Cd toxicity. Activities of superoxide dismutase (SOD), guaiacol peroxidase (GPX), and catalase (CAT) decreased, whereas ascorbate peroxidase (APX) activity increased in response to 5 μM Cd. Induction of APX activity might play an important role in the response of cucumber to Cd toxicity.
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Claims 16
Claim · model-written summary
At 1 μM Cd, cucumber shoot and root dry mass did not change.
- Taxon
- Cucumber
Cucumis sativust0 - Treatment
- 1 μM Cde0
- Outcome
- shoot and root dry masse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to 1 μM Cd had no effect on shoot and root dry mass”
t0“Cucumber”
Claim · model-written summary
At 5 μM Cd, cucumber growth was significantly reduced.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 5 μM Cde0
- Outcome
- plant growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure to 5 μM Cd significantly reduced plant growth”
t0“Cucumber”
Claim · model-written summary
Silicon stimulated growth of Cd-treated cucumber.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- Sie0
- Outcome
- growthe0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of Si stimulated the growth of Cd-treated cucumber”
Claim · model-written summary
Exposure to 5 μM Cd increased shoot Cd concentration in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 5 μM Cde0
- Outcome
- shoot Cd concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to 5 μM Cd significantly increased shoot Cd concentration and decreased iron (Fe) and zinc (Zn) concentration”
t0“Cucumber”
Claim · model-written summary
Exposure to 5 μM Cd decreased iron (Fe) in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 5 μM Cde0
- Outcome
- iron (Fe)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to 5 μM Cd significantly increased shoot Cd concentration and decreased iron (Fe) and zinc (Zn) concentration”
t0“Cucumber”
Claim · model-written summary
Exposure to 5 μM Cd decreased zinc (Zn) concentration in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 5 μM Cde0
- Outcome
- zinc (Zn) concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to 5 μM Cd significantly increased shoot Cd concentration and decreased iron (Fe) and zinc (Zn) concentration”
t0“Cucumber”
Claim · model-written summary
Si-supplied cucumber plants had lower Cd than unsupplied plants.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants supplied with Si had lower Cd and higher Zn and Fe compared with unsupplied plants”
t0“Cucumber”
Claim · model-written summary
Si-supplied cucumber plants had higher Zn than unsupplied plants.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Sie0
- Outcome
- Zne0
- Direction
- highere0
- Comparator
- unsupplied plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants supplied with Si had lower Cd and higher Zn and Fe compared with unsupplied plants”
t0“Cucumber”
Claim · model-written summary
Si-supplied cucumber plants had higher Fe than unsupplied plants.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Sie0
- Outcome
- Fee0
- Direction
- highere0
- Comparator
- unsupplied plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants supplied with Si had lower Cd and higher Zn and Fe compared with unsupplied plants”
t0“Cucumber”
Claim · model-written summary
Cd exposure increased malondialdehyde production in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Cde0
- Outcome
- production of malondialdehyde (MDA)e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to Cd resulted in a higher production of malondialdehyde (MDA)”
t0“Cucumber”
Claim · model-written summary
Si partly ameliorated Cd-induced lipid peroxidation in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Si nutritione0
- Outcome
- lipid peroxidatione0
- Direction
- amelioratede0
- Qualifier
- partlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si nutrition partly ameliorated lipid peroxidation induced by Cd toxicity”
t0“Cucumber”
Claim · model-written summary
5 μM Cd decreased cucumber superoxide dismutase (SOD) activity.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 5 μM Cde0
- Outcome
- superoxide dismutase (SOD)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activities of superoxide dismutase (SOD), guaiacol peroxidase (GPX), and catalase (CAT) decreased, whereas ascorbate peroxidase (APX) activity increased in response to 5 μM Cd”
t0“Cucumber”
Claim · model-written summary
5 μM Cd decreased cucumber guaiacol peroxidase (GPX) activity.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 5 μM Cde0
- Outcome
- guaiacol peroxidase (GPX)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activities of superoxide dismutase (SOD), guaiacol peroxidase (GPX), and catalase (CAT) decreased, whereas ascorbate peroxidase (APX) activity increased in response to 5 μM Cd”
t0“Cucumber”
Claim · model-written summary
5 μM Cd decreased cucumber catalase (CAT) activity.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 5 μM Cde0
- Outcome
- catalase (CAT)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activities of superoxide dismutase (SOD), guaiacol peroxidase (GPX), and catalase (CAT) decreased, whereas ascorbate peroxidase (APX) activity increased in response to 5 μM Cd”
t0“Cucumber”
Claim · model-written summary
5 μM Cd increased cucumber ascorbate peroxidase activity.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 5 μM Cde0
- Outcome
- ascorbate peroxidase (APX) activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ascorbate peroxidase (APX) activity increased in response to 5 μM Cd”
t0“Cucumber”
Claim · model-written summary
The authors suggest APX induction may contribute to cucumber response to Cd toxicity.
- Taxon
- cucumberCucumis sativuse0
- Gene
- APXe0
- Outcome
- response of cucumber to Cd toxicitye0
- Qualifier
- mighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Induction of APX activity might play an important role in the response of cucumber to Cd toxicity”
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