Abstract
Aluminum stress inhibited root growth and caused serious oxidative damage in wheat (Triticum aestivum L.) seedlings. Under Al stress, added Ca significantly improved root growth, decreased Al, H2O2 and TBARS content and increased O2 - generation, Ca content, improved CAT activity, and decreased OXO and FA-POX activity. Interestingly, Ca levels did not have any significant effect on SOD activity under Al stressed condition. Histochemical data also showed that added Ca decreased the accumulation of phenolic compounds synchronously with the reduction of Al and H2O2 content in the Al-stressed roots. Both biochemical and histochemical data revealed that added Ca reduced oxidative coupling reactions (i.e. cross-link formation) of phenolic compounds by decreasing FA-POX and thus improving the root growth of wheat seedlings under Al stress. The results suggest that the exogenously supplied Ca may be involved in alleviating Al-induced oxidative damage by regulating ROS level via antioxidant enzyme activities and improving root growth by displacing Al from the root surface.
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Claims 11
Claim · model-written summary
Aluminum stress inhibited wheat root growth.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Aluminum stresse0
- Outcome
- root growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aluminum stress inhibited root growth and caused serious oxidative damage in wheat (Triticum aestivum L.) seedlings”
Claim · model-written summary
Aluminum stress caused serious oxidative damage.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Aluminum stresse0
- Outcome
- oxidative damagee0
- Direction
- causede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aluminum stress inhibited root growth and caused serious oxidative damage in wheat (Triticum aestivum L.) seedlings”
Claim · model-written summary
Added calcium improved root growth under aluminum stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- added Cae0
- Outcome
- root growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under Al stress, added Ca significantly improved root growth”
t0“wheat”
Claim · model-written summary
Added calcium reduced Al, H2O2 and TBARS content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- added Cae1
- Outcome
- Al, H2O2 and TBARS contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased Al, H2O2 and TBARS content”
e1“Under Al stress, added Ca significantly improved root growth”
t0“wheat”
Claim · model-written summary
Added calcium increased O2 generation and calcium content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- added Cae1
- Outcome
- O2 - generation, Ca contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased O2 - generation, Ca content”
e1“Under Al stress, added Ca significantly improved root growth”
t0“wheat”
Claim · model-written summary
Added calcium improved CAT activity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved CAT activity”
e1“Under Al stress, added Ca significantly improved root growth”
t0“wheat”
Claim · model-written summary
Added calcium decreased OXO and FA-POX activities.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- added Cae1
- Outcome
- OXO and FA-POX activitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased OXO and FA-POX activity”
e1“Under Al stress, added Ca significantly improved root growth”
t0“wheat”
Claim · model-written summary
Calcium did not significantly alter SOD activity under aluminum stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Ca levelse0
- Outcome
- SOD activitye0
- Direction
- did not have any significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ca levels did not have any significant effect on SOD activity under Al stressed condition”
t0“wheat”
Claim · model-written summary
Added calcium decreased phenolic compound accumulation in aluminum-stressed roots.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- rootse0
- Treatment
- added Cae0
- Outcome
- accumulation of phenolic compoundse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“added Ca decreased the accumulation of phenolic compounds synchronously with the reduction of Al and H2O2 content in the Al-stressed roots”
t0“wheat”
Claim · model-written summary
Calcium reduced phenolic oxidative coupling by decreasing FA-POX, improving root growth.
- Taxon
- wheatTriticum aestivume0
- Treatment
- added Cae0
- Outcome
- oxidative coupling reactionse0
- Qualifier
- by decreasing FA-POX and thus improving the root growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“added Ca reduced oxidative coupling reactions (i.e. cross-link formation) of phenolic compounds by decreasing FA-POX and thus improving the root growth of wheat seedlings under Al stress”
Claim · model-written summary
The authors proposed that calcium alleviates aluminum damage through ROS regulation and aluminum displacement from roots.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- exogenously supplied Cae0
- Outcome
- Al-induced oxidative damagee0
- Qualifier
- regulating ROS level via antioxidant enzyme activitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenously supplied Ca may be involved in alleviating Al-induced oxidative damage by regulating ROS level via antioxidant enzyme activities and improving root growth by displacing Al from the root surface”
t0“wheat”
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See all 41 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.