Abstract
Nitric oxide(NO) as a physiological active substance is widespread in organisms and can regulate a series of physiology and biochemical reactions of plant to enhance adversity resistance.The effects of sodium nitropprus-side(SNP,an exogenous nitric oxide donor) on growth and physiological characteristics were investigated in perennial ryegrass(Lolium perenne L.) seedling under osmotic stress(15%PEG-6000).Results showed that under osmotic stress(15%PEG-6000),0.1 mmol·L-1 SNP significantly alleviated growth inhibition of perennial ryegrass seedling,accelerated accumulation of proline(Pro) and delayed water dissipation.The activity of superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT) were enhanced and the content of malondialdehyde(MDA) were reduced significantly in perennial ryegrass seedling leaves under osmotic stress.The damage of perennial ryegrass seedlings caused by the osmotic stress of 15%PEG-6000 was significantly reduced by 0.1 mmol·L-1 SNP.A higher concentration of SNP(0.5 mmol·L-1) had less effect on growth and alleviating oxidative damage in perennial ryegrass seedlings.Exogenous nitric oxide induces changes in water content of leaves and antioxidant enzyme systems in plants,which is an important anti-adversity mechanism of plant physiology response to maintain natural growth under osmotic stress.
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Claims 8
Claim · model-written summary
Under osmotic stress, 0.1 mmol·L-1 SNP significantly alleviated the growth inhibition of perennial ryegrass seedlings.
- Taxon
- perennial ryegrass
Lolium perennee0 - Treatment
- 0.1 mmol·L-1 SNPe0
- Outcome
- growth inhibitione0
- Direction
- alleviatede0
- Comparator
- osmotic stress(15%PEG-6000)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under osmotic stress(15%PEG-6000),0.1 mmol·L-1 SNP significantly alleviated growth inhibition of perennial ryegrass seedling”
Claim · model-written summary
Under osmotic stress, 0.1 mmol·L-1 SNP accelerated the accumulation of proline in perennial ryegrass seedlings.
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- 0.1 mmol·L-1 SNPe0
- Outcome
- accumulation of prolinee1
- Direction
- acceleratede1
- Comparator
- osmotic stress(15%PEG-6000)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under osmotic stress(15%PEG-6000),0.1 mmol·L-1 SNP significantly alleviated growth inhibition of perennial ryegrass seedling”
e1“accelerated accumulation of proline(Pro) and delayed water dissipation”
Claim · model-written summary
Under osmotic stress, 0.1 mmol·L-1 SNP delayed water dissipation in perennial ryegrass seedlings.
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- 0.1 mmol·L-1 SNPe0
- Outcome
- water dissipatione1
- Direction
- delayede1
- Comparator
- osmotic stress(15%PEG-6000)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under osmotic stress(15%PEG-6000),0.1 mmol·L-1 SNP significantly alleviated growth inhibition of perennial ryegrass seedling”
e1“accelerated accumulation of proline(Pro) and delayed water dissipation”
Claim · model-written summary
Under osmotic stress, the activities of SOD, POD and CAT were enhanced in perennial ryegrass seedling leaves.
- Taxon
- perennial ryegrassLolium perennee0
- Organ / stage
- leavese0
- Treatment
- osmotic stresse0
- Outcome
- activity of superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT)e0
- Direction
- enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT) were enhanced and the content of malondialdehyde(MDA) were reduced significantly in perennial ryegrass seedling leaves under osmotic stress”
Claim · model-written summary
Under osmotic stress, the malondialdehyde content was significantly reduced in perennial ryegrass seedling leaves.
- Taxon
- perennial ryegrassLolium perennee0
- Organ / stage
- leavese0
- Treatment
- osmotic stresse0
- Outcome
- content of malondialdehyde(MDA)e0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT) were enhanced and the content of malondialdehyde(MDA) were reduced significantly in perennial ryegrass seedling leaves under osmotic stress”
Claim · model-written summary
The 0.1 mmol·L-1 SNP significantly reduced the damage of perennial ryegrass seedlings caused by 15% PEG-6000 osmotic stress.
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- 0.1 mmol·L-1 SNPe0
- Outcome
- damagee0
- Direction
- significantly reducede0
- Comparator
- osmotic stress of 15%PEG-6000e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The damage of perennial ryegrass seedlings caused by the osmotic stress of 15%PEG-6000 was significantly reduced by 0.1 mmol·L-1 SNP”
Claim · model-written summary
The higher SNP concentration (0.5 mmol·L-1) had less effect than 0.1 mmol·L-1 SNP on growth and alleviation of oxidative damage in perennial ryegrass seedlings.
- Taxon
- perennial ryegrassLolium perennee0
- Treatment
- higher concentration of SNP(0.5 mmol·L-1)e0
- Outcome
- growth and alleviating oxidative damagee0
- Direction
- less effecte0
- Comparator
- 0.1 mmol·L-1 SNPe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A higher concentration of SNP(0.5 mmol·L-1) had less effect on growth and alleviating oxidative damage in perennial ryegrass seedlings”
e1“under osmotic stress(15%PEG-6000),0.1 mmol·L-1 SNP significantly alleviated growth inhibition of perennial ryegrass seedling”
Claim · model-written summary
Exogenous nitric oxide changes leaf water content and antioxidant enzyme systems in plants, which is an anti-adversity mechanism under osmotic stress.
- Taxon
- plantsViridiplantaee0
- Treatment
- Exogenous nitric oxidee0
- Outcome
- changes in water content of leaves and antioxidant enzyme systemse0
Verbatim
e0“Exogenous nitric oxide induces changes in water content of leaves and antioxidant enzyme systems in plants”
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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.