Claim · model-written summary
During 24 h exposure to 5 mum arsenate, rice roots extruded arsenite, accounting for 60-90% of arsenate uptake.
- Taxon
- rice
Oryza sativae1 - Organ / stage
- rice rootse3
- Treatment
- 5 mum arsenatee3
- Outcome
- extruded arsenitee3
- Value
- 60-90%e3
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The rice (Oryza sativa) silicon transporter Lsi1 (OsNIP2;1, an aquaporin channel) is the major entry route of arsenite into rice roots”
e3“During 24-h exposure to 5 mum arsenate, rice roots extruded arsenite to the external medium rapidly, accounting for 60-90% of the arsenate uptake”
Title
The role of the rice aquaporin Lsi1 in arsenite efflux from roots
Fang‐Jie Zhao; Yukiko Ago; Namiki Mitani; et al. New Phytologist 2010. doi:10.1111/j.1469-8137.2010.03192.x
Other claims from this paper (5)
- Intervention effect Expression of Lsi1 in Xenopus oocytes enhanced arsenite efflux, so Lsi1 transports arsenite bidirectionally.
- Intervention effect The Lsi1 mutant extruded significantly less arsenite than wild-type rice.
- Intervention effect The Lsi1 mutant accumulated more arsenite in the roots than wild-type rice.
- Intervention effect Lsi2 mutation had little effect on arsenite efflux from rice roots.
- Observation The Lsi1 pathway accounts for only 15-20% of total arsenite efflux, suggesting other efflux transporters.