Abstract
Hydroponic cultures were conducted to compare the aluminum (Al) tolerance among different rice (Oryza sativa L.) varieties, including indica, japonica and their hybrids. The results showed that the root growth of rice plant was inhibited in different degrees among Al treated varieties. The Al tolerance observed through relative root elongation indicated that five japonica varieties including Longjing 9, Dharial, LGC 1, Ribenyou and Koshihikari were relatively more tolerant than indica varieties. Most indica varieties in this study, such as Aus 373 and 9311 (awnless), were sensitive to Al toxicity. The Al tolerance of most progenies from japonica × indica or indica × japonica crosses was constantly consistent with indica parents. The differences of Al tolerance among Longjing 9 (japonica), Yangdao 6 (indica) and Wuyunjing 7 (japonica) were studied. Biomass and the malondial-dehyde content of Yangdao 6 under Al exposure decreased and increased, respectively, while there was no significant effect on those of Longjing 9 and Wuyunjing 7. Remarkable reduction of root activities was observed in all these three rice varieties. Significantly higher Al content in roots was found in Yangdao 6 compared to Longjing 9 or Wuyunjing 7.
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Claims 9
Claim · model-written summary
Aluminum inhibited rice root growth to differing degrees across varieties.
- Taxon
- rice
Oryza sativae0 - Treatment
- Ale0
- Outcome
- root growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root growth of rice plant was inhibited in different degrees among Al treated varieties”
Claim · model-written summary
Five named japonica varieties were more aluminum tolerant than indica varieties.
- Taxon
- RiceOryza sativat0
- Material
- japonica varietiese0
- Outcome
- Al tolerancee1
- Direction
- more tolerante0
- Comparator
- indica varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“five japonica varieties including Longjing 9, Dharial, LGC 1, Ribenyou and Koshihikari were relatively more tolerant than indica varieties”
e1“The Al tolerance of most progenies from japonica × indica or indica × japonica crosses was constantly consistent with indica parents”
t0“Rice”
Claim · model-written summary
Most indica varieties, including Aus 373 and 9311, were sensitive to aluminum toxicity.
- Taxon
- RiceOryza sativat0
- Material
- indica varietiese0
- Outcome
- sensitive to Al toxicitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most indica varieties in this study, such as Aus 373 and 9311 (awnless), were sensitive to Al toxicity”
t0“Rice”
Claim · model-written summary
Most japonica–indica progenies had aluminum tolerance consistent with indica parents.
- Taxon
- RiceOryza sativat0
- Material
- progenies from japonica × indica or indica × japonica crossese0
- Outcome
- Al tolerancee0
- Comparator
- indica parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Al tolerance of most progenies from japonica × indica or indica × japonica crosses was constantly consistent with indica parents”
t0“Rice”
Claim · model-written summary
Aluminum exposure decreased Yangdao 6 biomass.
- Taxon
- RiceOryza sativat0
- Material
- Yangdao 6e0
- Treatment
- Al exposuree0
- Outcome
- Biomasse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass and the malondial-dehyde content of Yangdao 6 under Al exposure decreased and increased, respectively”
t0“Rice”
Claim · model-written summary
Aluminum exposure increased Yangdao 6 malondialdehyde content.
- Taxon
- RiceOryza sativat0
- Material
- Yangdao 6e0
- Treatment
- Al exposuree0
- Outcome
- malondial-dehyde contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass and the malondial-dehyde content of Yangdao 6 under Al exposure decreased and increased, respectively”
t0“Rice”
Claim · model-written summary
Aluminum exposure had no significant effect on biomass and malondialdehyde in Longjing 9 and Wuyunjing 7.
- Taxon
- RiceOryza sativat0
- Material
- Longjing 9 and Wuyunjing 7e0
- Treatment
- Al exposuree1
- Outcome
- Biomass and the malondial-dehyde contente1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no significant effect on those of Longjing 9 and Wuyunjing 7”
e1“Biomass and the malondial-dehyde content of Yangdao 6 under Al exposure”
t0“Rice”
Claim · model-written summary
Root activities were reduced in all three compared rice varieties.
- Taxon
- riceOryza sativae0
- Outcome
- root activitiese0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Remarkable reduction of root activities was observed in all these three rice varieties”
Claim · model-written summary
Yangdao 6 had significantly higher root aluminum content than Longjing 9 or Wuyunjing 7.
- Taxon
- RiceOryza sativat0
- Material
- Yangdao 6e0
- Outcome
- Al content in rootse0
- Direction
- highere0
- Comparator
- Longjing 9 or Wuyunjing 7e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly higher Al content in roots was found in Yangdao 6 compared to Longjing 9 or Wuyunjing 7”
t0“Rice”
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