| High-affinity sodium uptake in land plants. | |
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MedLine Citation:
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PMID: 19939835 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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High-affinity Na(+) uptake in plants and its mediation by HKT transporters have been studied in very few species. This study expands the knowledge of high-affinity Na(+) uptake in land plants for both uptake characteristics and involvement of HKT transporters. In non-flowering plants, we analyzed the Na(+) content of wild mosses, carried out experiments on K(+) and Na(+) uptake in the micromolar range of concentrations with the moss Physcomitrella patens and the liverwort Riccia fluitans, studied a Deltahkt1 mutant of P. patens and identified the HKT genes of the lycopodiophyta (clubmoss) Selaginella moellendorffii. In flowering plants we studied Na(+) uptake in the micromolar range of concentrations in 16 crop plant species, identified the HKT transporters that could mediate high-affinity Na(+) uptake in several species of the Triticeae tribe, and described some characteristics of high-affinity Na(+) uptake in other species. Our results suggest that high-affinity Na(+) uptake occurs in most land plants. In very few of them, rice and species in the Triticeae and Aveneae tribes of the Poaceae family, it is probably mediated by HKT transporters. In other plants, high-affinity Na(+) uptake is mediated by one or several transporters whose responses to the presence of K(+) or Ba(2+) are fundamentally different from those of HKT transporters. |
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Authors:
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Rosario Haro; Mar?a A Ba?uelos; Alonso Rodr?guez-Navarro |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-11-24 |
Journal Detail:
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Title: Plant & cell physiology Volume: 51 ISSN: 1471-9053 ISO Abbreviation: Plant Cell Physiol. Publication Date: 2010 Jan |
Date Detail:
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Created Date: 2010-01-18 Completed Date: 2010-04-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9430925 Medline TA: Plant Cell Physiol Country: Japan |
Other Details:
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Languages: eng Pagination: 68-79 Citation Subset: IM |
Affiliation:
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Centro de Biotecnolog?a y Gen?mica de Plantas, Universidad Polit?cnica de Madrid, Madrid, Spain. |
| Data Bank Information | |
Bank Name/Acc. No.:
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GENBANK/FN401372; FN401373; FN401374; FN401375; FN401376; FN401377; FN401378; FN401379; FN401380; FN401381; FN401382 |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological
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physiology Amino Acid Sequence Barium / metabolism, toxicity Base Sequence Biological Transport, Active / genetics Bryophyta / genetics, metabolism Cation Transport Proteins / genetics, metabolism* Cloning, Molecular Ecosystem Evolution, Molecular Fungal Proteins / genetics, metabolism Gene Expression Regulation, Fungal / genetics Gene Expression Regulation, Plant / genetics Hepatophyta / genetics, metabolism Molecular Sequence Data Oryza sativa / genetics, metabolism Osmolar Concentration Phylogeny Plant Proteins / genetics, metabolism* Potassium / metabolism, toxicity Salt-Tolerant Plants / metabolism* Selaginellaceae / genetics, metabolism Sodium / metabolism* Symporters / genetics, metabolism* Triticum / genetics, metabolism Water-Electrolyte Balance / genetics |
| Chemical | |
Reg. No./Substance:
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0/Cation Transport Proteins; 0/Fungal Proteins; 0/HKT1 protein, plant; 0/Plant Proteins; 0/Symporters; 7440-09-7/Potassium; 7440-23-5/Sodium; 7440-39-3/Barium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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