Abstract
High temperature stress during seed development can reduce the rice grain yield and lead to poor milling quality because of inadequate grain filling. We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development. The phenotype of Norin-22 was very sensitive to high temperature conditions, which decreased the grain yield and produced defective characteristics. A significant reduction in the ATP content was also detected in the developing seeds. Koshihikari and Nipponbare, which are progenies derived from Norin-22, are known to be sensitive to high temperature stress. It is suggested that the high temperature stress sensitivity of Norin-22 was inherited by these cultivars. Shinriki was tolerant of high temperature stress, and it produced a large proportion of normal-shaped grains under high temperature stress conditions, with only a moderate decrease in its ATP content. These results suggest that there was a relationship between ATP deficiency and defective endosperm characteristics. Therefore, it is expected that identifying a rice cultivar that produces an adequate amount of ATP during seed development will be useful for breeding a cultivar that tolerates high temperature stress.
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Claims 9
Claim · model-written summary
High temperature conditions decreased grain yield of Norin-22 rice.
- Taxon
- rice
Oryza sativae1 - Material
- Norin-22e0
- Treatment
- high temperature conditionse0
- Outcome
- grain yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phenotype of Norin-22 was very sensitive to high temperature conditions, which decreased the grain yield and produced defective characteristics”
e1“We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development”
Claim · model-written summary
High temperature conditions produced defective grain characteristics in Norin-22 rice.
- Taxon
- riceOryza sativae1
- Material
- Norin-22e0
- Treatment
- high temperature conditionse0
- Outcome
- defective characteristicse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phenotype of Norin-22 was very sensitive to high temperature conditions, which decreased the grain yield and produced defective characteristics”
e1“We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development”
Claim · model-written summary
ATP content of developing rice seeds was significantly reduced.
- Taxon
- riceOryza sativae1
- Organ / stage
- developing seedse2
- Outcome
- ATP contente2
- Direction
- reductione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development”
e2“A significant reduction in the ATP content was also detected in the developing seeds”
Claim · model-written summary
High temperature stress sensitivity of Norin-22 was probably inherited by Koshihikari and Nipponbare.
- Taxon
- riceOryza sativae1
- Material
- Norin-22e3
- Outcome
- high temperature stress sensitivitye3
- Qualifier
- inheritede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development”
e3“It is suggested that the high temperature stress sensitivity of Norin-22 was inherited by these cultivars”
Claim · model-written summary
Shinriki rice was tolerant of high temperature stress.
- Taxon
- riceOryza sativae1
- Material
- Shinrikie4
- Treatment
- high temperature stresse4
- Outcome
- tolerant of high temperature stresse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development”
e4“Shinriki was tolerant of high temperature stress”
Claim · model-written summary
Shinriki rice produced a large proportion of normal-shaped grains under high temperature stress conditions.
- Taxon
- riceOryza sativae1
- Material
- Shinrikie4
- Treatment
- high temperature stress conditionse5
- Outcome
- proportion of normal-shaped grainse5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development”
e4“Shinriki was tolerant of high temperature stress”
e5“it produced a large proportion of normal-shaped grains under high temperature stress conditions, with only a moderate decrease in its ATP content”
Claim · model-written summary
Shinriki rice showed only a moderate decrease in ATP content under high temperature stress conditions.
- Taxon
- riceOryza sativae1
- Material
- Shinrikie4
- Treatment
- high temperature stress conditionse5
- Outcome
- ATP contente5
- Direction
- decreasee5
- Qualifier
- moderatee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development”
e4“Shinriki was tolerant of high temperature stress”
e5“it produced a large proportion of normal-shaped grains under high temperature stress conditions, with only a moderate decrease in its ATP content”
Claim · model-written summary
Identifying a rice cultivar with adequate seed ATP during seed development will be useful for breeding heat-tolerant cultivars.
- Taxon
- riceOryza sativae6
- Outcome
- breeding a cultivar that tolerates high temperature stresse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“identifying a rice cultivar that produces an adequate amount of ATP during seed development will be useful for breeding a cultivar that tolerates high temperature stress”
Claim · model-written summary
ATP deficiency is related to defective endosperm characteristics in rice seeds.
- Taxon
- riceOryza sativae1
- Compound
- ATPe7
- Outcome
- defective endosperm characteristicse7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We tested the high temperature stress tolerance of eight rice cultivars and fluctuations in the ATP content during seed development”
e7“there was a relationship between ATP deficiency and defective endosperm characteristics”
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See all 195 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.