Abstract
The circumnutation of a rice root under dark conditions was observed using a highly sensitive camera, a new super-HARP camera. A rice root showed regular rhythmic movement with fixed angle. When treated with Al (5 microM AlCl3), the rotation angle of the root tip was drastically decreased and then the movement was resumed again, whereas the root elongation rate was constant. With the increase of Al concentration, the cycle-fading period became shorter. This is the first report to show that an Al treatment ceased the rotation movement of the root but not elongation.
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Claims 4
Claim · model-written summary
Rice roots showed regular rhythmic movement at a fixed angle in darkness.
- Taxon
- rice
Oryza sativae0 - Outcome
- regular rhythmic movement with fixed anglee0
- Setting
- Darkt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A rice root showed regular rhythmic movement with fixed angle”
t0“Dark”
Claim · model-written summary
Aluminum sharply decreased the root-tip rotation angle before movement resumed.
- Taxon
- riceOryza sativae1
- Treatment
- Al (5 microM AlCl3)e0
- Outcome
- rotation angle of the root tipe0
- Direction
- decreasede0
- Qualifier
- movement was resumed againe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When treated with Al (5 microM AlCl3), the rotation angle of the root tip was drastically decreased and then the movement was resumed again”
e1“The circumnutation of a rice root”
Claim · model-written summary
Root elongation rate remained constant during aluminum treatment.
- Taxon
- riceOryza sativae1
- Treatment
- Al (5 microM AlCl3)e0
- Outcome
- root elongation ratee0
- Direction
- constante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When treated with Al (5 microM AlCl3), the rotation angle of the root tip was drastically decreased and then the movement was resumed again, whereas the root elongation rate was constant”
e1“The circumnutation of a rice root”
Claim · model-written summary
Increasing aluminum concentration shortened the cycle-fading period.
- Taxon
- riceOryza sativae1
- Treatment
- Al concentratione0
- Outcome
- cycle-fading periode0
- Direction
- shortere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Al concentration, the cycle-fading period became shorter”
e1“The circumnutation of a rice root”
The same questions in other papers
aluminium atom · growth · Oryza sativa (rice)Results differ
36 papers in the same direction as this paper · 16 in the opposite direction
- positive
- positive
- positive
49 papers more in this group
See all 53 papers →aluminium trichloride · growth · Oryza sativa (rice)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.