A potassium-dependent oxygen sensing pathway regulates plant root hydraulics
| Autor: | Christophe Maurel, Matthieu Canut, Colette Tournaire-Roux, Olivier Loudet, Yann Boursiac, Zaigham Shahzad, Alexandre Martinière |
|---|---|
| Přispěvatelé: | Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Institut Jean-Pierre Bourgin (IJPB), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Maurel, Christophe, Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Potassium chemistry.chemical_element absorption du potassium Plant Roots 01 natural sciences Oxygen Permeability General Biochemistry Genetics and Molecular Biology 03 medical and health sciences Hydraulic conductivity Gene Expression Regulation Plant Arabidopsis Gene expression Botany Transcriptional regulation [SDV.BV]Life Sciences [q-bio]/Vegetal Biology anaerobic response Vegetal Biology oxygen deficiency ethylene responsive transcription factors biology MAP kinase kinase kinase root water transport Arabidopsis Proteins hypoxia anoxie Water transport racinaire d'eau Raf-like MAPKKK environmental stress flooding tolerance plant cell signaling MAP Kinase Kinase Kinases biology.organism_classification Cell biology DNA-Binding Proteins Metabolic pathway arabidopsis 030104 developmental biology chemistry Biologie végétale Transcription Factors 010606 plant biology & botany |
| Zdroj: | Cell Cell, Elsevier, 2016, 167 (1), pp.87-98. ⟨10.1016/j.cell.2016.08.068⟩ Cell 1 (167), 87-98. (2016) |
| ISSN: | 0092-8674 1097-4172 |
| DOI: | 10.1016/j.cell.2016.08.068⟩ |
| Popis: | Aerobic organisms survive low oxygen (O2) through activation of diverse molecular, metabolic, and physiological responses. In most plants, root water permeability (in other words, hydraulic conductivity, Lpr) is downregulated under O2 deficiency. Here, we used a quantitative genetics approach in Arabidopsis to clone Hydraulic Conductivity of Root 1 (HCR1), a Raf-like MAPKKK that negatively controls Lpr. HCR1 accumulates and is functional under combined O2 limitation and potassium (K(+)) sufficiency. HCR1 regulates Lpr and hypoxia responsive genes, through the control of RAP2.12, a key transcriptional regulator of the core anaerobic response. A substantial variation of HCR1 in regulating Lpr is observed at the Arabidopsis species level. Thus, by combinatorially integrating two soil signals, K(+) and O2 availability, HCR1 modulates the resilience of plants to multiple flooding scenarios. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|