- Information
- Symbol: OsNIP3;1,DTE1
- MSU: LOC_Os10g36924
- RAPdb: Os10g0513200
- Publication
- OsNIP3;1, a rice boric acid channel, regulates boron distribution and is essential for growth under boron-deficient conditions, 2014, The Plant Journal.
- Dwarf and tiller-enhancing 1 regulates growth and development by influencing boron uptake in boron limited conditions in rice., 2015, Plant Sci.
- Preferential distribution of boron to developing tissues is mediated by the intrinsic protein OsNIP3;1., 2017, Plant Physiol.
- Genbank accession number
- Key message
- OsNIP3;1, a rice boric acid channel, regulates boron distribution and is essential for growth under boron-deficient conditions
- GFP-tagged OsNIP3;1 expressed in tobacco BY2 cells was localized to the plasma membrane.
- Promoter-GUS analysis suggested that OsNIP3;1 is expressed mainly in exodermal cells and steles in roots, as well as in cells around the vascular bundles in leaf sheaths and pericycle cells around the xylem in leaf blades.
- These data provide evidence that DTE1 is critical for vegetative growth and reproductive development in rice grown under B-deficient conditions
- Map-based cloning revealed that dte1 encodes a NOD26-LIKE INTRINSIC PROTEIN orthologous to known B channel proteins AtNIP5;1 in Arabidopsis and TASSEL-LESS1 in maize
- Subcellular localization showed DTE1 is mainly localized in the plasma membrane
- OsNIP3;1 was polarly localized at the xylem parenchyma cells of enlarged vascular bundles of nodes facing toward the xylem vessels
- These results indicate that OsNIP3;1 located in the nodes is involved in the preferential distribution of B to the developing tissues by unloading B from the xylem in rice and that it is regulated at both transcriptional and protein level in response to external B level
- Connection
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