title: ABA transport and transporters.
abstract: Abscisic acid (ABA) metabolism, perception, and transport form a triptych allowing higher plants to use ABA as a signaling molecule. The molecular bases of ABA metabolism are now well described and, over the past few years, several ABA receptors have been discovered. Although ABA transport has long been demonstrated in planta, the first breakthroughs in identifying plasma membrane-localized ABA transporters came in 2010, with the identification of two ATP-binding cassette (ABC) proteins. More recently, two ABA transporters in the nitrate transporter 1/peptide transporter (NRT1/PTR) family have been identified. In this review, we discuss the role of these different ABA transporters and examine the scientific impact of their identification. Given that the NRT1/PTR family is involved in the transport of nitrogen (N) compounds, further work should determine whether an interaction between ABA and N signaling or nutrition occurs.
authors: Laboratoire de Biochimie et Physiologie Moléculaire des Plantes, Institut de Biologie Intégrative des Plantes 'Claude Grignon', UMR CNRS/INRA/SupAgro/UM2, Place Viala, 34060 Montpellier Cedex, France.
authors: Yann
authors: Y
authors: Boursiac
authors: Sophie
authors: S
authors: Léran
authors: Claire
authors: C
authors: Corratgé-Faillie
authors: Alain
authors: A
authors: Gojon
authors: Gabriel
authors: G
authors: Krouk
authors: Benoît
authors: B
authors: Lacombe
mesh_terms: D018528:ATP-Binding Cassette Transporters / Q000235:genetics* / Q000378:metabolism; D000040:Abscisic Acid / Q000378:metabolism*; D027321:Anion Transport Proteins / Q000235:genetics* / Q000378:metabolism; D017360:Arabidopsis / Q000502:physiology*; D029681:Arabidopsis Proteins / Q000378:metabolism*; D001693:Biological Transport, Active; D026901:Membrane Transport Proteins / Q000235:genetics* / Q000378:metabolism; D000091285:Nitrate Transporters; D015398:Signal Transduction
chemical_list: D018528:ATP-Binding Cassette Transporters; D027321:Anion Transport Proteins; D029681:Arabidopsis Proteins; D026901:Membrane Transport Proteins; D000091285:Nitrate Transporters; D000040:Abscisic Acid; C043912:peptide permease