Keeping nitrate in the roots: an unexpected requirement for cadmium tolerance in plants.
Li et al. (2010) identified AtNRT1.8 as a membrane transporter involved in the control of long-distance transport of nitrate between roots and shoot. Both the regulation of AtNRT1.8 expression and the phenotype of an nrt1.8 mutant indicate that this transporter plays an important role in protecting the plant against cadmium toxicity, and possibly against a wide range of biotic and abiotic stresses.
Gojon
Alain
A
Biochimie et Physiologie Moléculaire des Plantes, UMR 5004 CNRS/INRA/SupAgro-M/UM2, Place Viala, 34060 Montpellier cedex 2, France. gojon@supagro.inra.fr
Gaymard
Frédéric
F
D027321:Anion Transport Proteins / Q000235:genetics / Q000378:metabolism; D017360:Arabidopsis / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism; D001692:Biological Transport; D002104:Cadmium / Q000633:toxicity*; D009154:Mutation; D009566:Nitrates / Q000378:metabolism*; D010641:Phenotype; D018517:Plant Roots / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism
D027321:Anion Transport Proteins; D029681:Arabidopsis Proteins; C539716:NRT1.5 protein, Arabidopsis; C552677:NRT1.8 protein, Arabidopsis; D009566:Nitrates; D002104:Cadmium