Iron utilization and metabolism in plants.
The solubilization and long-distance allocation of iron between organs and tissues, as well as its subcellular compartmentalization and remobilization, involve various chelation and oxidation/reduction steps, transport activities and association with soluble proteins that store and buffer this metal. Maintaining iron homeostasis is an important determinant in building prosthetic groups such as heme and Fe-S clusters, and in assembling them into apoproteins, which are major components of plant metabolism. Such processes require complex protein machineries located in mitochondria and plastids. An essential role for iron metabolism and utilization in plant productivity is evidenced by the strong iron requirement for proper photosynthetic reactions.
Briat
Jean-François
JF
Biochimie et Physiologie Moléculaire des Plantes, Centre National de la Recherche Scientifique (UMR 5004), Institut National de la Recherche Agronomique, Université Montpellier 2, F-34060 Montpellier cedex 2, France. briat@supagro.inra.fr
Curie
Catherine
C
Gaymard
Frédéric
F
D001383:Azetidinecarboxylic Acid / Q000031:analogs & derivatives / Q000378:metabolism; D018533:Biomass; D006418:Heme / Q000096:biosynthesis; D007501:Iron / Q000378:metabolism*; D010788:Photosynthesis / Q000502:physiology; D063245:Plant Development; D010944:Plants / Q000378:metabolism*; D018087:Plastids / Q000378:metabolism; D014617:Vacuoles / Q000378:metabolism
C082893:nicotianamine; D006418:Heme; D001383:Azetidinecarboxylic Acid; D007501:Iron