Journal
PLANT SIGNALING & BEHAVIOR
Volume 8, Issue 3, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.4161/psb.23425
Keywords
copper; iron; membrane transport; potassium; calcium; hydroxyl radicals; oxidative stress; toxicity; adaptation; development
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Funding
- Spanish MICINN [BFU2007-60332, BFU2010-14873]
- Ministerio de Ciencia e Innovacion [BES-2008-005096]
- Australian Research Council
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Transition metals such as Iron (Fe) and Copper (Cu) are essential for plant cell development. At the same time, due their capability to generate hydroxyl radicals they can be potentially toxic to plant metabolism. Recent works on hydroxyl-radical activation of ion transporters suggest that hydroxyl radicals generated by transition metals could play an important role in plant growth and adaptation to imbalanced environments. In this mini-review, the relation between transition metals uptake and utilization and oxidative stress-activated ion transport in plant cells is analyzed, and a new model depicting both apoplastic and cytosolic mode of ROS signaling to plasma membrane transporters is suggested.
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