Paper · 2010 · Xibei zhiwu xuebao

Effect of exogenous carbon monoxide on antioxidative system in rice seedlings under drought stress.

Jiang Li; Tang Hongling; Huiping Chen

5
claims
8
verbatim quotes
2
citations
1
research areas
—
Not open access

Abstract

To investigate the protective effect of exogenous carbon monoxide(CO) against drought-induced oxidative damage,CO donor hematin(H) and CO scavenger hemoglobin(Hb) were applied in rice(Oryza sativa L.) seedlings under 20% PEG-6000 of water stress.The results showed that exogenous CO could cause the rice-seedling leaves to increase their proline contents and soluble protein contents,whereas decrease their MDA contents and membrane relative permeability,and accelerate differentially the activities of superoxide dismutase(SOD),catalase(CAT) and peroxidase(POD).The effects of CO could be reversed when CO scavenger Hb is added.It confirms that CO may enhance resistance against drought stress through raising anti-oxidative capability in rice seedling.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous CO increased proline and soluble protein contents in rice seedling leaves.

Organ / stage
leavese0
Treatment
exogenous COe0
Outcome
proline contents and soluble protein contentse0
Direction
increasee0
Qualifier
20% PEG-6000 of water stresse1

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 CO could cause the rice-seedling leaves to increase their proline contents and soluble protein contents”

✓ located verbatim in the source · abstract, characters 270–383 · show in text ↑
e1

“under 20% PEG-6000 of water stress”

✓ located verbatim in the source · abstract, characters 211–245 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous CO decreased MDA content and membrane relative permeability in rice seedling leaves.

Organ / stage
leavese0
Treatment
exogenous COe0
Outcome
MDA contents and membrane relative permeabilitye0
Direction
decreasee0
Qualifier
20% PEG-6000 of water stresse1

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 CO could cause the rice-seedling leaves to increase their proline contents and soluble protein contents,whereas decrease their MDA contents and membrane relative permeability”

✓ located verbatim in the source · abstract, characters 270–454 · show in text ↑
e1

“under 20% PEG-6000 of water stress”

✓ located verbatim in the source · abstract, characters 211–245 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous CO differentially accelerated superoxide dismutase, catalase and peroxidase activities.

Organ / stage
leavese0
Treatment
exogenous COe0
Outcome
activities of superoxide dismutase(SOD),catalase(CAT) and peroxidase(POD)e0
Direction
acceleratee0

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 CO could cause the rice-seedling leaves to increase their proline contents and soluble protein contents,whereas decrease their MDA contents and membrane relative permeability,and accelerate differentially the activities of superoxide dismutase(SOD),catalase(CAT) and peroxidase(POD)”

✓ located verbatim in the source · abstract, characters 270–562 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Hemoglobin reversed the effects of CO in rice seedlings.

Treatment
CO scavenger Hbe0
Outcome
effects of COe0
Direction
reversede0
Comparator
COe0

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 effects of CO could be reversed when CO scavenger Hb is added”

✓ located verbatim in the source · abstract, characters 563–628 · show in text ↑
e1

“rice(Oryza sativa L.) seedlings”

✓ located verbatim in the source · abstract, characters 179–210 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors infer that CO may increase rice drought resistance through antioxidative capacity.

Treatment
COe0
Outcome
resistance against drought stresse0
Direction
enhancee0
Qualifier
raising anti-oxidative capabilitye0

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

“CO may enhance resistance against drought stress through raising anti-oxidative capability in rice seedling”

✓ located verbatim in the source · abstract, characters 646–753 · show in text ↑

carbon monoxide · molecular: metabolites · Oryza sativa (rice)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

carbon monoxide · physiology: osmolytes · Oryza sativa (rice)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

carbon monoxide · physiology: antioxidant enzymes · Oryza sativa (rice)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

carbon monoxide · physiology: oxidative · Oryza sativa (rice)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.