Claim · model-written summary
Reducing arsenic accumulation in rice grain is recommended as a strategy for food safety.
- Taxon
- rice
Oryza sativae7 - Outcome
- arsenic accumulation in graine7
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Our results provide insight into the uptake mechanism of arsenite in rice and strategies for reducing arsenic accumulation in grain for enhanced food safety”
Title
Transporters of arsenite in rice and their role in arsenic accumulation in rice grain
Jian Feng Ma; Naoki Yamaji; Namiki Mitani; et al. Proceedings of the National Academy of Sciences 2008. doi:10.1073/pnas.0802361105
Other claims from this paper (6)
- Observation Two types of transporters mediate transport of arsenite from the external medium to the xylem in rice.
- Observation NIP subfamily aquaporins in rice are permeable to arsenite but not to arsenate.
- Intervention effect Mutation in OsNIP2;1 significantly decreases arsenite uptake in rice.
- Intervention effect Rice mutants defective in the silicon efflux transporter Lsi2 showed greatly decreased arsenite transport to the xylem and accumulation in shoots and grain.
- Intervention effect Mutation in Lsi2 had a greater impact on arsenic accumulation in shoots and grain of field-grown rice than mutation in Lsi1.
- Mechanism Arsenite transport in rice roots shares the same highly efficient pathway as silicon, which explains why rice accumulates arsenic efficiently.