Paper · 2013 · Nongye xiandaihua yanjiu

Effect of Exogenous Proline on Growth of Salt-Stressed Rice at Tillering Stage

Zhao Hong-wei

9
claims
18
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

To explore the application value of exogenous proline in agricultural production,the effect of exogenous proline at different concentration(5 mmol/L,15 mmol/L,30 mmol/L,45 mmol/L) on the morphological index,biomass,chlorophyll and antioxidant enzymes of salt-stressed rice were investigated by pot test.The result showed that salt stress significantly reduced the morphological index(e.g.plant height,tillers and number of green leaves per plant) biomass,the content of chlorophyll(Chl a,Chl b and total chlorophyll) and carotenoid.Moreover,the activity of superoxide dismutase(SOD) under salt stress was significantly higher than that in control(P0.05),while the activity of peroxidase(POD) had no significantly change.However,except the little effect on morphological index,exogenous application of proline mitigated the adverse effects by increasing root fresh weight and dry weight of each part of the plant,improving chlorophyll and carotenoid content,and enhancing the activity of SOD and POD.Application of 30 mM proline proved to be more effective in inducing salt stress tolerance as compared to other levels.

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Claims 9

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salt stress significantly reduced rice morphology and biomass.

Treatment
salt stresse0
Outcome
morphological index(e.g.plant height,tillers and number of green leaves per plant) biomasse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“salt stress significantly reduced the morphological index(e.g.plant height,tillers and number of green leaves per plant) biomass”

✓ located verbatim in the source · abstract, characters 326–454 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salt stress significantly reduced chlorophyll and carotenoid content.

Treatment
salt stresse0
Outcome
content of chlorophyll(Chl a,Chl b and total chlorophyll) and carotenoide0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“salt stress significantly reduced the morphological index(e.g.plant height,tillers and number of green leaves per plant) biomass,the content of chlorophyll(Chl a,Chl b and total chlorophyll) and carotenoid”

✓ located verbatim in the source · abstract, characters 326–531 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Salt stress significantly increased SOD activity versus control.

Treatment
salt stresse0
Outcome
activity of superoxide dismutase(SOD)e0
Direction
highere0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“the activity of superoxide dismutase(SOD) under salt stress was significantly higher than that in control(P0.05)”

✓ located verbatim in the source · abstract, characters 541–653 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

POD activity did not change significantly under salt stress.

Treatment
salt stresse0
Outcome
activity of peroxidase(POD)e0
Direction
no significantly changee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“under salt stress was significantly higher than that in control(P0.05),while the activity of peroxidase(POD) had no significantly change”

✓ located verbatim in the source · abstract, characters 583–719 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Proline increased root fresh weight and dry weight of plant parts.

Treatment
exogenous application of prolinee0
Outcome
root fresh weight and dry weight of each part of the plante0
Direction
increasinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“exogenous application of proline mitigated the adverse effects by increasing root fresh weight and dry weight of each part of the plant”

✓ located verbatim in the source · abstract, characters 776–911 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Proline improved chlorophyll and carotenoid content.

Treatment
exogenous application of prolinee0
Outcome
chlorophyll and carotenoid contente0
Direction
improvinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“exogenous application of proline mitigated the adverse effects by increasing root fresh weight and dry weight of each part of the plant,improving chlorophyll and carotenoid content”

✓ located verbatim in the source · abstract, characters 776–956 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Proline enhanced SOD and POD activity.

Treatment
exogenous application of prolinee0
Outcome
activity of SOD and PODe0
Direction
enhancinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“exogenous application of proline mitigated the adverse effects by increasing root fresh weight and dry weight of each part of the plant,improving chlorophyll and carotenoid content,and enhancing the activity of SOD and POD”

✓ located verbatim in the source · abstract, characters 776–998 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Proline had little effect on morphological indices.

Treatment
exogenous application of prolinee0
Outcome
morphological indexe0
Direction
little effecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“except the little effect on morphological index,exogenous application of proline mitigated the adverse effects”

✓ located verbatim in the source · abstract, characters 728–838 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Thirty mM proline induced greater salt tolerance than other levels.

Treatment
30 mM prolinee0
Outcome
salt stress tolerancee0
Direction
more effectivee0
Comparator
other levelse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Application of 30 mM proline proved to be more effective in inducing salt stress tolerance as compared to other levels”

✓ located verbatim in the source · abstract, characters 999–1117 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 55–59 · show in text ↑

proline · growth · Oryza sativa (rice)Results differ

28 papers: 26 positive, 2 negative or no effect

25 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. no effect
  3. positive

24 papers more in this group

See all 28 papers →

proline · tolerance: abiotic · Oryza sativa (rice)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
See all 3 papers →

proline · physiology: antioxidant enzymes · Oryza sativa (rice)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive
See all 4 papers →

proline · physiology: pigments · Oryza sativa (rice)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

salinity · physiology: antioxidant enzymes · Oryza sativa (rice)Results differ

43 papers: 18 positive, 25 negative or no effect

24 papers in the same direction as this paper · 18 in the opposite direction

  1. positive
  2. positive
  3. positive

39 papers more in this group

See all 43 papers →

salinity · physiology: pigments · Oryza sativa (rice)Positive and negative results

74 papers: 12 positive, 62 negative or no effect

61 papers in the same direction as this paper · 12 in the opposite direction

  1. positive
  2. positive
  3. positive

70 papers more in this group

See all 74 papers →

salinity · yield · Oryza sativa (rice)Positive and negative results

167 papers: 29 positive, 138 negative or no effect

137 papers in the same direction as this paper · 29 in the opposite direction

  1. positive
  2. positive
  3. positive

163 papers more in this group

See all 167 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.