- Information
- Symbol: NRT1,OsNRT1,OsNRT1.1
- MSU: LOC_Os03g13274
- RAPdb: Os03g0235900
- Publication
- Rice OsNAR2.1 interacts with OsNRT2.1, OsNRT2.2 and OsNRT2.3a nitrate transporters to provide uptake over high and low concentration ranges, 2011, Plant Cell Environ.
- Cloning and functional characterization of a constitutively expressed nitrate transporter gene, OsNRT1, from rice, 2000, Plant Physiol.
- Comparison of ion balance and nitrogen metabolism in old and young leaves of alkali-stressed rice plants, 2012, PLoS One.
- NRT1.1s in plants: functions beyond nitrate transport, 2020, J Exp Bot.
- Modulation of nitrate-induced phosphate response by the MYB transcription factor RLI1/HINGE1 in the nucleus, 2020, Mol Plant.
- Genbank accession number
- Key message
- Northern-blot and in situ hybridization analysis indicated that OsNRT1 is constitutively expressed in the most external layer of the root, epidermis and root hair
- As a first step toward that goal, we have cloned a nitrate transporter gene from rice called OsNRT1
- OsNRT1 is a new member of a growing transporter family called PTR, which consists not only of nitrate transporters from higher plants that are homologs of the Arabidopsis CHL1 (AtNRT1) protein, but also peptide transporters from a wide variety of genera including animals, plants, fungi, and bacteria
- However, despite the fact that OsNRT1 shares a higher degree of sequence identity with the two peptide transporters from plants (approximately 50%) than with the nitrate transporters (approximately 40%) of the PTR family, no peptide transport activity was observed when OsNRT1 was expressed in either Xenopus oocytes or yeast
- Furthermore, contrasting the dual-affinity nitrate transport activity of CHL1, OsNRT1 displayed only low-affinity nitrate transport activity in Xenopus oocytes, with a K(m) value of approximately 9 mM
- These data strongly indicate that OsNRT1 encodes a constitutive component of a low-affinity nitrate uptake system for rice
- Cloning and functional characterization of a constitutively expressed nitrate transporter gene, OsNRT1, from rice
- Connection
- NRT1~OsNRT1~OsNRT1.1, OsPHR3, OsPHR3 affects the traits governing nitrogen homeostasis in rice., During vegetative growth phase, compared with the wild-type, OsPHR3 mutants showed significant variations in the adventitious root development, influx rates of 15N-NO3- and 15N-NH4+, concentrations of total N, NO3- and NH4+ in different tissues, and the relative expression levels of OsNRT1
- NRT1~OsNRT1~OsNRT1.1, OsNIA1~OsNia1~OsNR2, The indica nitrate reductase gene OsNR2 allele enhances rice yield potential and nitrogen use efficiency., Indica OsNR2 also promotes NO3- uptake via feed-forward interaction with OsNRT1
- NRT1~OsNRT1~OsNRT1.1, OsNIA1~OsNia1~OsNR2, The indica nitrate reductase gene OsNR2 allele enhances rice yield potential and nitrogen use efficiency., These properties enable indica OsNR2 to confer increased effective tiller number, grain yield and NUE on japonica rice, effects enhanced by interaction with an additionally introgressed indica OsNRT1
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