title: A toggle switch in plant nitrate uptake.
abstract: In plants, the uptake of nitrate from the soil is a critical process controlled by complex regulatory networks that target nitrate transporters in the roots. In this issue, Ho et al. (2009) show that phosphorylation of the CHL1 nitrate transporter allows the plant root to sense and respond to different nitrate concentrations in the soil.
authors.affiliation: BPMP, CNRS UMR 5004, 34060 Montpellier Cedex 1, France. gregory.vert@supagro.inra.fr
authors.forename: Grégory
authors.initials: G
authors.lastname: Vert
authors.forename: Joanne
authors.initials: J
authors.lastname: Chory
mesh_terms: D027321:Anion Transport Proteins / Q000378:metabolism; D017360:Arabidopsis / Q000378:metabolism*; D001692:Biological Transport / Q000235:genetics; D009566:Nitrates / Q000378:metabolism*; D010766:Phosphorylation; D010940:Plant Proteins / Q000378:metabolism; D018517:Plant Roots / Q000378:metabolism
chemical_list: D027321:Anion Transport Proteins; C101492:NRT1.1 protein, Arabidopsis; D009566:Nitrates; D010940:Plant Proteins