From the soil to the seeds: the long journey of nitrate in plants
| Autor: | Patrick Armengaud, Mathieu Jossier, Sophie Filleur, Eugene Diatloff, Julie Dechorgnat, Chi Tam Nguyen, Françoise Daniel-Vedele |
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| Přispěvatelé: | Lancaster Environment Centre, Department of Biological Sciences-Lancaster University, Institut des sciences du végétal (ISV), Centre National de la Recherche Scientifique (CNRS), Unité de Nutrition Azotée des Plantes, Institut National de la Recherche Agronomique (INRA), Lancaster University, Funding Agency and Grant Number |
| Rok vydání: | 2010 |
| Předmět: |
CLC family
0106 biological sciences Physiology Arabidopsis Plant Science Vacuole NITRITE UPTAKE 01 natural sciences Soil chemistry.chemical_compound FUNCTIONAL-CHARACTERIZATION Nitrate MESH: Arabidopsis MESH: Nitrogen 2. Zero hunger Abiotic component 0303 health sciences food and beverages Nitrate Transporters MESH: Anion Transport Proteins Nitrogen MESH: Nitrates Seeds NRT family ROOT PLASMA-MEMBRANE MESH: Biological Transport Anion Transport Proteins Mineralogy chemistry.chemical_element MESH: Arabidopsis Proteins Models Biological CHL1 FUNCTIONS NITROGEN UPTAKE MESH: Soil 03 medical and health sciences nitrate Botany [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Nitrogen cycle 030304 developmental biology REDUCTASE-ACTIVITY Nitrates Arabidopsis Proteins MESH: Models Biological Xylem Biological Transport Assimilation (biology) UPTAKE SYSTEM ION HOMEOSTASIS MESH: Seeds chemistry TRANSPORTER GENES ATNRT2.1 transport Soil water ARABIDOPSIS-THALIANA 010606 plant biology & botany |
| Zdroj: | Journal of Experimental Botany Journal of Experimental Botany, Oxford University Press (OUP), 2011, 62 (4), pp.1349-59. ⟨10.1093/jxb/erq409⟩ |
| ISSN: | 1460-2431 0022-0957 |
| DOI: | 10.1093/jxb/erq409 |
| Popis: | International audience; Under temperate climates and in cultivated soils, nitrate is the most important source of nitrogen (N) available for crops and, before its reduction and assimilation into amino acids, must enter the root cells and then move in the whole plant. The aim of this review is to provide an overall picture of the numerous membrane proteins that achieve these processes by being localized in different compartments and in different tissues. Nitrate transporters (NRT) from the NRT1 and NRT2 families ensure the capacity of root cells to take up nitrate, through high- and low-affinity systems (HATS and LATS) depending on nitrate concentrations in the soil solution. Other members of the NRT1 family are involved subsequently in loading and unloading of nitrate to and from the xylem vessels, allowing its distribution to aerial organs or its remobilization from old leaves. Once in the cell, nitrate can be stored in the vacuole by passing through the tonoplast, a step that involves chloride channels (CLC) or a NRT2 member. Finally, with the exception of one NRT1 member, the transport of nitrite towards the chloroplast is still largely unknown. All these fluxes are controlled by key factors, the 'major tour operators' like the internal nutritional status of the plant but also by external abiotic factors. |
| Databáze: | OpenAIRE |
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