Abstract
Polyamines are low-molecular weight polycations involved in many physiological processes in plants. In this work, we studied the effects of spermine (SPM) on the responses in detached rice (Oryza sativa L.) leaves caused by water stress. Polyethylene glycol 6000 (PEG) was used to induce water stress of detached rice leaves. Upon treatment with PEG, the contents of H2O2, malondialdehyde, NH4(superscript +), abscisic acid (ABA), and proline increased in detached rice leaves. PEG treatment also resulted in chlorophyll loss and protein degradation in detached. ABA content in detached rice leaves was increased by exogenous application of H2O2. SPM pretreatment was effective in reducing PEG-induced H2O2 production, lipid peroxidation, NH4(superscript +) accumulation, chlorophyll loss, protein degradation, and ABA elevation in detached rice leaves. However, SPM pretreatment had no effect on PEG-induced reduction of relative water content and accumulation of proline. It appears that SPM does not protect against all the responses of detached rice leaves induced by PEG.
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Claims 6
Claim · model-written summary
PEG treatment increased contents of H2O2, malondialdehyde and NH4+ in detached rice leaves.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- detached rice leavese0
- Treatment
- PEGe0
- Outcome
- contents of H2O2, malondialdehyde, NH4(superscript +)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Upon treatment with PEG, the contents of H2O2, malondialdehyde, NH4(superscript +), abscisic acid (ABA), and proline increased in detached rice leaves”
Claim · model-written summary
PEG treatment increased abscisic acid and proline contents in detached rice leaves.
- Taxon
- riceOryza sativae0
- Organ / stage
- detached rice leavese0
- Treatment
- PEGe0
- Outcome
- abscisic acid (ABA), and prolinee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Upon treatment with PEG, the contents of H2O2, malondialdehyde, NH4(superscript +), abscisic acid (ABA), and proline increased in detached rice leaves”
Claim · model-written summary
PEG treatment resulted in chlorophyll loss and protein degradation in detached rice leaves.
- Taxon
- riceOryza sativae1
- Treatment
- PEGe0
- Outcome
- chlorophyll loss and protein degradatione0
- Direction
- resulted ine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PEG treatment also resulted in chlorophyll loss and protein degradation in detached”
e1“detached rice (Oryza sativa L.) leaves”
Claim · model-written summary
Exogenous application of H2O2 increased ABA content in detached rice leaves.
- Taxon
- riceOryza sativae0
- Organ / stage
- detached rice leavese0
- Treatment
- exogenous application of H2O2e0
- Outcome
- ABA contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA content in detached rice leaves was increased by exogenous application of H2O2”
Claim · model-written summary
SPM pretreatment reduced PEG-induced H2O2 production, lipid peroxidation and NH4+ accumulation in detached rice leaves.
- Taxon
- riceOryza sativae0
- Organ / stage
- detached rice leavese0
- Treatment
- SPM pretreatmente0
- Outcome
- H2O2 production, lipid peroxidation, NH4(superscript +) accumulatione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SPM pretreatment was effective in reducing PEG-induced H2O2 production, lipid peroxidation, NH4(superscript +) accumulation, chlorophyll loss, protein degradation, and ABA elevation in detached rice leaves”
Claim · model-written summary
SPM pretreatment reduced PEG-induced chlorophyll loss, protein degradation and ABA elevation in detached rice leaves.
- Taxon
- riceOryza sativae0
- Organ / stage
- detached rice leavese0
- Treatment
- SPM pretreatmente0
- Outcome
- chlorophyll loss, protein degradation, and ABA elevatione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SPM pretreatment was effective in reducing PEG-induced H2O2 production, lipid peroxidation, NH4(superscript +) accumulation, chlorophyll loss, protein degradation, and ABA elevation in detached rice leaves”
The same questions in other papers
spermine · physiology: pigments · Oryza sativa (rice)Results agree
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- positive
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- positive
- positive
- positive
1 paper more in this group
See all 5 papers →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.