ArticleJournal of experimental botany2016
Nax loci affect SOS1-like Na+/H+ exchanger expression and activity in wheat.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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Who cites it
54 citing papers in PubMed.
- AMicroorganisms · 2026Article
- Salinity tolerance in wheat: rethinking the targets.Journal of experimental botany · 2026Review
- HB52-PUT2 Module-Mediated Polyamine Shoot-to-Root Movement Regulates Salt Stress Tolerance in Tomato.Plant, cell & environment · 2025Article
- Introgression of quantitative trait locus qSFWI6D from Aegilops tauschii improves salt tolerance in wheat at seedling stage.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Evaluating the impacts of environmental stresses on agriculture in the context of climate resilience.Plant molecular biology · 2025Review
- The interplay of salt stress and Azolla aqueous extract on ionic balance, secondary metabolism, and gene expression in wheat seedlings.BMC plant biology · 2025Article
- Article
- Thiourea and arginine synergistically preserve redox homeostasis and ionic balance for alleviating salinity stress in wheat.Scientific reports · 2024Article
- Unraveling wheat's response to salt stress during early growth stages through transcriptomic analysis and co-expression network profiling.BMC genomic data · 2024Article
- Inverse regulation of SOS1 and HKT1 protein localization and stability by SOS3/CBL4 inProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Nanopore Direct RNA Sequencing Reveals the Short-Term Salt Stress Response in Maize Roots.Plants (Basel, Switzerland) · 2024Article
- Integrated Transcriptomic and Metabolomic Analyses Uncover the Differential Mechanism in Saline-Alkaline Tolerance betweenInternational journal of molecular sciences · 2023Article
- Involvement of cell cycle and ion transferring in the salt stress responses of alfalfa varieties at different development stages.BMC plant biology · 2023Article
- CycC1;1-WRKY75 complex-mediated transcriptional regulation of SOS1 controls salt stress tolerance in Arabidopsis.The Plant cell · 2023Article
- Root and Leaf Anatomy, Ion Accumulation, and Transcriptome Pattern under Salt Stress Conditions in Contrasting Genotypes ofPlants (Basel, Switzerland) · 2023Article
- Diversification of threeJournal of genetics · 2023Article
- Transcriptomic analysis reveals that methyl jasmonate confers salt tolerance in alfalfa by regulating antioxidant activity and ion homeostasis.Frontiers in plant science · 2023Article
- Article
- HvNCX, a prime candidate gene for the novel qualitative locus qS7.1 associated with salinity tolerance in barley.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Genome-wide association study reveals a genomic region on 5AL for salinity tolerance in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
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7 authors.
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Abstract
Salinity stress tolerance in durum wheat is strongly associated with a plant's ability to control Na(+) delivery to the shoot. Two loci, termed Nax1 and Nax2, were recently identified as being critical for this process and the sodium transporters HKT1;4 and HKT1;5 were identified as the respective candidate genes. These transporters retrieve Na(+) from the xylem, thus limiting the rates of Na(+) transport from the root to the shoot. In this work, we show that the Nax loci also affect activity and expression levels of the SOS1-like Na(+)/H(+) exchanger in both root cortical and stelar tissues. Net Na(+) efflux measured in isolated steles from salt-treated plants, using the non-invasive ion flux measuring MIFE technique, decreased in the sequence: Tamaroi (parental line)>Nax1=Nax2>Nax1:Nax2 lines. This efflux was sensitive to amiloride (a known inhibitor of the Na(+)/H(+) exchanger) and was mirrored by net H(+) flux changes. TdSOS1 relative transcript levels were 6-10-fold lower in Nax lines compared with Tamaroi. Thus, it appears that Nax loci confer two highly complementary mechanisms, both of which contribute towards reducing the xylem Na(+) content. One enhances the retrieval of Na(+) back into the root stele via HKT1;4 or HKT1;5, whilst the other reduces the rate of Na(+) loading into the xylem via SOS1. It is suggested that such duality plays an important adaptive role with greater versatility for responding to a changing environment and controlling Na(+) delivery to the shoot.
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