Abstract
Post-anoxic injury of root tips of soybean seedlings is more severe following a very short (1 hour) period of anoxia than a longer (3-5 hour) period. Anaerobic incubation of root tips in the presence of 100 mM ascorbate, an antioxidant and free-radical-scavenging compound, alleviates the detrimental post-anoxia effects of a very short anoxic treatment. Extracts of root tips which have been treated anoxically for 1 hour have an elevated capacity to produce superoxide anions when subsequently exposed to air, than extracts from seedlings treated anoxically for longer time. Changes in superoxide dismutase (SOD) enzyme activity and SOD-specific RNA sequences will be presented. The results support that post-anoxic injury occurs in soybean roots and that SOD plays a role in the detoxification of superoxide anions.
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Claims 4
Claim · model-written summary
One hour of anoxia caused more severe root-tip injury than 3-5 hours.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- root tipse0
- Treatment
- very short (1 hour) period of anoxiae0
- Outcome
- Post-anoxic injurye0
- Direction
- more severee0
- Comparator
- longer (3-5 hour) periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post-anoxic injury of root tips of soybean seedlings is more severe following a very short (1 hour) period of anoxia than a longer (3-5 hour) period.”
Claim · model-written summary
Ascorbate alleviated injury after short anoxia.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- root tipse0
- Treatment
- 100 mM ascorbatee0
- Outcome
- detrimental post-anoxia effectse0
- Direction
- alleviatese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anaerobic incubation of root tips in the presence of 100 mM ascorbate, an antioxidant and free-radical-scavenging compound, alleviates the detrimental post-anoxia effects of a very short anoxic treatment.”
t0“soybean”
t1“soybean”
Claim · model-written summary
Extracts after one hour of anoxia had higher superoxide production capacity than longer-treated extracts.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- root tipse0
- Treatment
- treated anoxically for 1 houre0
- Outcome
- capacity to produce superoxide anionse0
- Direction
- elevatede0
- Comparator
- treated anoxically for longer timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extracts of root tips which have been treated anoxically for 1 hour have an elevated capacity to produce superoxide anions when subsequently exposed to air, than extracts from seedlings treated anoxically for longer time.”
t0“soybean”
t1“soybean”
Claim · model-written summary
Authors inferred that SOD helps detoxify superoxide anions in soybean roots.
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- rootse0
- Gene
- SODe0
- Outcome
- detoxification of superoxide anionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results support that post-anoxic injury occurs in soybean roots and that SOD plays a role in the detoxification of superoxide anions.”
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- negative
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See all 11 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.