Abstract
The electron microscopical observations using Cytochemical method of cerium phosphate precipitation indicated that the Ca 2+ ATPase activity was mainly localized at the plasmalemma in wheat seedling cells grown at normal temperature. And the enzyme activity did not appear to be different between water soaked and CR4 Soaked treatments under normal temperature. However,the differences occurred when wheat seedlings were treated for 12 hrs and 24 hrs at -7℃:the plasmalemma Ca 2+ ATPase activity in the seedlings from water soaked seeds was markedly decreased,and the ultrastructures were disrupted,and that from cold resistant agent CR4 Soaked seeds was still maintained, and their fine structures were also intact. The results suggest that the cold resistant agent CR 4 plays an important role for stabilizing plasmalemma calcium pump (Ca 2+ ATPase) under low temperature stress.
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Claims 7
Claim · model-written summary
Calcium ATPase activity was mainly localized at the plasmalemma in wheat seedling cells at normal temperature.
- Taxon
- wheat
Triticum aestivume0 - Organ / stage
- seedling cellse0
- Gene
- Ca 2+ ATPasee0
- Outcome
- activity was mainly localized at the plasmalemmae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Ca 2+ ATPase activity was mainly localized at the plasmalemma in wheat seedling cells grown at normal temperature”
Claim · model-written summary
Calcium ATPase activity did not appear different between water-soaked and CR4-soaked seedlings at normal temperature.
- Taxon
- WINTER WHEATTriticum aestivumt0
- Treatment
- CR4 Soaked treatmentse0
- Outcome
- enzyme activitye0
- Direction
- did not appear to be differente0
- Comparator
- water soakede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the enzyme activity did not appear to be different between water soaked and CR4 Soaked treatments under normal temperature”
t0“WINTER WHEAT”
Claim · model-written summary
After cold treatment, plasmalemma calcium ATPase activity markedly decreased in seedlings from water-soaked seeds.
- Taxon
- wheatTriticum aestivume0
- Treatment
- water soaked seedse0
- Gene
- Ca 2+ ATPasee0
- Outcome
- plasmalemma Ca 2+ ATPase activitye0
- Direction
- markedly decreasede0
- Qualifier
- 12 hrs and 24 hrs at -7℃e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat seedlings were treated for 12 hrs and 24 hrs at -7℃:the plasmalemma Ca 2+ ATPase activity in the seedlings from water soaked seeds was markedly decreased”
Claim · model-written summary
Cold treatment disrupted ultrastructure in seedlings from water-soaked seeds.
- Taxon
- wheatTriticum aestivume1
- Treatment
- water soaked seedse0
- Outcome
- ultrastructures were disruptede0
- Qualifier
- 12 hrs and 24 hrs at -7℃e1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seedlings from water soaked seeds was markedly decreased,and the ultrastructures were disrupted”
e1“wheat seedlings were treated for 12 hrs and 24 hrs at -7℃”
Claim · model-written summary
After cold treatment, calcium ATPase activity remained maintained in seedlings from CR4-soaked seeds.
- Taxon
- WINTER WHEATTriticum aestivumt0
- Treatment
- cold resistant agent CR4 Soaked seedse0
- Outcome
- plasmalemma Ca 2+ ATPase activitye1
- Direction
- still maintainede0
- Comparator
- water soaked seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that from cold resistant agent CR4 Soaked seeds was still maintained”
e1“the plasmalemma Ca 2+ ATPase activity in the seedlings from water soaked seeds was markedly decreased”
t0“WINTER WHEAT”
Claim · model-written summary
After cold treatment, seedlings from CR4-soaked seeds retained intact fine structures.
- Taxon
- wheatTriticum aestivume1
- Treatment
- cold resistant agent CR4 Soaked seedse0
- Outcome
- fine structures were also intacte0
- Qualifier
- 12 hrs and 24 hrs at -7℃e1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that from cold resistant agent CR4 Soaked seeds was still maintained, and their fine structures were also intact”
e1“wheat seedlings were treated for 12 hrs and 24 hrs at -7℃”
Claim · model-written summary
The authors infer that CR4 stabilizes the plasmalemma calcium pump during low-temperature stress.
- Taxon
- WINTER WHEATTriticum aestivumt0
- Treatment
- cold resistant agent CR 4e0
- Gene
- Ca 2+ ATPasee0
- Outcome
- stabilizing plasmalemma calcium pumpe0
- Qualifier
- low temperature stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cold resistant agent CR 4 plays an important role for stabilizing plasmalemma calcium pump (Ca 2+ ATPase) under low temperature stress”
t0“WINTER WHEAT”
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See all 22 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.