title: Adenine nucleotide transport in plants: much more than a mitochondrial issue.
abstract: Adenine nucleotides play a vital role in plant metabolism and physiology, essentially representing the major energy currency of the cell. Heterotrophic cells regenerate most of the ATP in mitochondria, whereas autotrophic cells also possess chloroplasts, representing a second powerhouse for ATP regeneration. Even though the synthesis of these nucleotides is restricted to a few locations, their use is nearly ubiquitous across the cell and thereby highly efficient systems are required to transport these molecules into and out of different compartments. Here, we discuss the location, biochemical characterization and evolution of corresponding transport systems in plants. We include recent scientific findings concerning organellar transporters from plants and algae and also focus on the physiological importance of adenine nucleotide exchange in these cells.
authors.affiliation: Plant Physiology, University of Kaiserslautern, Erwin-Schrödinger-Str., D-67663 Kaiserslautern, Germany.
authors.forename: Ilka
authors.initials: I
authors.lastname: Haferkamp
authors.forename: Alisdair R
authors.initials: AR
authors.lastname: Fernie
authors.forename: H Ekkehard
authors.initials: HE
authors.lastname: Neuhaus
mesh_terms: D000227:Adenine Nucleotides / Q000378:metabolism*; D000255:Adenosine Triphosphate / Q000378:metabolism; D017360:Arabidopsis / Q000378:metabolism; D001692:Biological Transport; D002736:Chloroplasts / Q000378:metabolism; D017377:Diatoms / Q000378:metabolism; D004721:Endoplasmic Reticulum / Q000378:metabolism; D006056:Golgi Apparatus / Q000378:metabolism; D007425:Intracellular Membranes / Q000378:metabolism*; D053078:Membrane Potential, Mitochondrial; D008928:Mitochondria / Q000378:metabolism*; D033704:Nucleotide Transport Proteins / Q000378:metabolism*; D020675:Peroxisomes / Q000378:metabolism; D010940:Plant Proteins / Q000378:metabolism; D010944:Plants / Q000378:metabolism*; D013379:Substrate Specificity
chemical_list: D000227:Adenine Nucleotides; D033704:Nucleotide Transport Proteins; D010940:Plant Proteins; D000255:Adenosine Triphosphate