Abstract
Anoxia followed by reoxygenation causes extensive damage to cellular components through generation of reactive oxygen intermediates. We examined cellular responses to oxidative stress after anoxia in cultured soybean or human fibroblast cells. Anoxia pretreatment protected soybean but not fibroblasts against H(2)O(2) concentrations that induced programmed cell death in normoxic cells. H(2)O(2) removal in anoxia-pretreated soybean cultures was faster. Protection was associated with increased action of alternative oxidase (AOX) and peroxidases. AOX inhibitors abolished the protective effect, while induction of AOX protected normoxic cells against H(2)O(2). We propose that during anoxia, plant cells can prepare for reoxygenation injury by up-regulating their antioxidant capacity, and that AOX is involved in this process.
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Claims 6
Claim · model-written summary
Anoxia pretreatment protected soybean cells against hydrogen peroxide concentrations that caused programmed death in normoxic cells.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Anoxia pretreatmente0
- Outcome
- programmed cell deathe0
- Direction
- protectede0
- Comparator
- normoxic cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean cells”
e0“Anoxia pretreatment protected soybean but not fibroblasts against H(2)O(2) concentrations that induced programmed cell death in normoxic cells.”
Claim · model-written summary
Hydrogen peroxide removal was faster in anoxia-pretreated soybean cultures.
- Taxon
- soybeanGlycine maxt0
- Treatment
- anoxia-pretreatede0
- Outcome
- H(2)O(2) removale0
- Direction
- fastere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean cells”
e0“H(2)O(2) removal in anoxia-pretreated soybean cultures was faster.”
Claim · model-written summary
Protection in soybean cultures was associated with increased alternative oxidase activity.
- Taxon
- soybeanGlycine maxt0
- Gene
- alternative oxidase (AOX)e0
- Outcome
- Protectione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean cells”
e0“Protection was associated with increased action of alternative oxidase (AOX) and peroxidases.”
Claim · model-written summary
Protection in soybean cultures was associated with increased peroxidase activity.
- Taxon
- soybeanGlycine maxt0
- Gene
- peroxidasese0
- Outcome
- Protectione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean cells”
e0“Protection was associated with increased action of alternative oxidase (AOX) and peroxidases.”
Claim · model-written summary
Alternative oxidase inhibitors abolished the protective effect in soybean cultures.
- Taxon
- soybeanGlycine maxt0
- Treatment
- AOX inhibitorse0
- Outcome
- protective effecte0
- Direction
- abolishede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean cells”
e0“AOX inhibitors abolished the protective effect”
Claim · model-written summary
Induction of alternative oxidase protected normoxic soybean cells against hydrogen peroxide.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean cells”
e0“induction of AOX protected normoxic cells against H(2)O(2)”
The same questions in other papers
flooding · molecular: metabolites · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 12 in the opposite direction
- negative
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See all 16 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.