Root branching responses to phosphate and nitrate.
Plant roots favour colonization of nutrient-rich zones in soil. Molecular genetic evidences demonstrate that roots sense and respond to local and global concentrations of inorganic phosphate and nitrate, in a fashion that depends on the shoot nutrient status. Recent investigations in Arabidopsis highlighted the role of the root tip in phosphate sensing and attributed to already known proteins (multicopper oxidases and nitrate transporters) new and unexpected functions in the root growth response to phosphate or nitrate.
Desnos
Thierry
T
Laboratoire de Biologie du Développement des Plantes, Service de biologie végétale et de microbiologie environnementale, Commissariat à l'Energie Atomique CEA cadarache, Saint Paul lez Durance F-13108, France. thiery.desnos@cea.fr
D017360:Arabidopsis / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D009566:Nitrates / Q000494:pharmacology*; D010710:Phosphates / Q000494:pharmacology*; D018517:Plant Roots / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000378:metabolism; D015398:Signal Transduction / Q000187:drug effects
D009566:Nitrates; D010710:Phosphates; D017382:Reactive Oxygen Species