Abstract
Abstract The roots of many plant species contain large amounts of pectin and it contributes to the formation of the rhizosphere. In the present study, the relationship between the root-tip pectin content and aluminium (Al) tolerance in wild-type (WT) and demethylesterified pectin degradation enzyme gene overexpressor (OsPG2-FOX) rice lines was compared. OsPG2-FOX rice showed reduced pectin content in roots, even under control conditions; Al treatment reduced root elongation and the pectin content in the root elongation zone. Wild-type rice showed more pectin accumulation in the root elongation zone after Al treatment. Relative to WT rice, OsPG2-FOX rice showed more Al accumulation in the root elongation zone. These results indicate that the amount of pectin influences Al tolerance and that the distribution of pectin in the root elongation zone inhibits Al accumulation in rice roots. Pectin accumulation in cell walls in the root elongation zone may play a role in protecting rice plants from the Al-induced inhibition of root elongation by regulating pectin distribution.
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Claims 6
Claim · model-written summary
OsPG2-FOX rice had reduced root pectin under control conditions.
- Taxon
- rice
Oryza sativae0 - Material
- OsPG2-FOXe0
- Outcome
- pectin content in rootse0
- Direction
- reducede0
- Qualifier
- under control conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsPG2-FOX rice showed reduced pectin content in roots, even under control conditions”
Claim · model-written summary
Al treatment reduced root elongation.
Not reportedTaxonComparator
Verbatim
e0“Al treatment reduced root elongation and the pectin content in the root elongation zone”
Claim · model-written summary
Al treatment reduced pectin in the root elongation zone.
Not reportedTaxonComparator
Verbatim
e0“Al treatment reduced root elongation and the pectin content in the root elongation zone”
Claim · model-written summary
Wild-type rice accumulated more pectin in the root elongation zone after Al treatment.
- Taxon
- riceOryza sativae0
- Material
- Wild-typee0
- Treatment
- Al treatmente0
- Outcome
- pectin accumulation in the root elongation zonee0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wild-type rice showed more pectin accumulation in the root elongation zone after Al treatment”
Claim · model-written summary
OsPG2-FOX rice accumulated more Al than wild-type rice in the root elongation zone.
- Taxon
- riceOryza sativae0
- Material
- OsPG2-FOXe0
- Outcome
- Al accumulation in the root elongation zonee0
- Direction
- moree0
- Comparator
- WT ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Relative to WT rice, OsPG2-FOX rice showed more Al accumulation in the root elongation zone”
Claim · model-written summary
Pectin distribution in the root elongation zone is interpreted to inhibit Al accumulation.
- Taxon
- riceOryza sativae0
- Organ / stage
- root elongation zonee0
- Outcome
- Al accumulation in rice rootse0
- Qualifier
- distribution of pectine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the distribution of pectin in the root elongation zone inhibits Al accumulation in rice roots”
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
- negative
- positive
- positive
49 papers more in this group
See all 53 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.