OsHKT1;4

• Symbol: OsHKT1;4
• MSU: LOC_Os04g51830
• RAPdb: Os04g0607600

• LOC_Os04g51830.1: 0.042

• LOC_Os04g51830.1: 0

• 83.62

• Sodium transport and HKT transporters: the rice model, 2003, The Plant Journal.
• A two-staged model of Na+ exclusion in rice explained by 3D modeling of HKT transporters and alternative splicing, 2012, PLoS One.
• OsHKT1;4-mediated Na+ transport in stems contributes to Na+ exclusion from leaf blades of rice at the reproductive growth stage upon salt stress., 2016, BMC Plant Biol.

Genbank accession number

• For OsHKT1;4, alternative splicing of transcript and the anatomical complexity of the sheath needed to be taken into account
• Thus, Na(+) accumulation in a specific leaf blade seems to be regulated by abundance of a correctly spliced OsHKT1;4 transcript in a corresponding sheath
• The level of OsHKT1;4 transcripts was prominent in leaf sheaths throughout the growth stages
• Taken together, our results indicate a newly recognized function of OsHKT1;4 in Na(+) exclusion in stems together with leaf sheaths, thus excluding Na(+) from leaf blades of a japonica rice cultivar in the reproductive growth stage, but the contribution is low when the plants are in the vegetative growth stage
• In addition, (22)Na(+) tracer experiments using peduncles of RNAi and WT plants suggested xylem Na(+) unloading by OsHKT1;4
• Unexpectedly however, we demonstrate here accumulation of OsHKT1;4 transcripts in the stem including internode II and peduncle in the reproductive growth stage
• Moreover, phenotypic analysis of OsHKT1;4 RNAi plants in the vegetative growth stage revealed no profound influence on the growth and ion accumulation in comparison with WT plants upon salinity stress
• Here, we report results of the functional characterization of the OsHKT1;4 transporter in rice

• OsHKT1;4, OsHKT1;5~SKC1~OsHKT8, A two-staged model of Na+ exclusion in rice explained by 3D modeling of HKT transporters and alternative splicing, Amongst these transporters, the cereal HKT1;4 and HKT1;5 are responsible for Na(+) exclusion from photosynthetic tissues, a key mechanism for plant salinity tolerance
• OsHKT1;4, OsJRL, OsJRL, a rice jacalin-related mannose-binding lectin gene, enhances Escherichia coli viability under high-salinity stress and improves salinity tolerance of rice., Overexpression of OsJRL in rice also enhanced salinity tolerance and increased the expression levels of a number of stress-related genes, including three LEA (late embryogenesis abundant proteins) genes (OsLEA19a, OsLEA23 and OsLEA24), three Na(+) transporter genes (OsHKT1;3, OsHKT1;4 and OsHKT1;5) and two DREB genes (OsDREB1A and OsDREB2B)