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Magnesium (Mg) Uptake

  • Gyanendra Nath Mitra

Abstract

Magnesium (Mg2+) is the most abundant free divalent cation in the cytosol of the plants. The free Mg2+ level in the cytosol is strictly regulated due to its role in photosynthesis and on membrane ionic currents. About 90 % of Mg2+ is complexed with cytoplasmic ATP.

Mg2+ acts as cofactor of many enzymes, such as RNA polymerase, ATPases, protein kinases, phosphatases, carboxylases and glutathione synthetase. It is required for aggregation of ribosomes and is the central atom of chlorophyll molecule. The proteins involved in transport of Mg2+ across biological membranes have unique structures. Al3+ tolerance of plants could be improved by upregulation of genes of AtMGT family.

Keywords

Glutathione Synthetase Rice Bean Membrane Ionic Current Transcription Factor ART1 CorA Homologue 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer India 2015

Authors and Affiliations

  • Gyanendra Nath Mitra
    • 1
  1. 1.Department of Soil Science and Agricultural ChemistryOrissa University of Agriculture and TechnologyBhubaneswarIndia

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