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Curr Opin Plant Biol. 2000 Jun;3(3):205-10.

Delivering copper within plant cells.

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Department of Biochemistry, University of Wisconsin, Madison, WI 53706, USA.


Two genes recently identified in Arabidopsis thaliana may be involved in sequestering free copper ions in the cytoplasm and delivering copper to post-Golgi vesicles. The genes COPPER CHAPERONE and RESPONSIVE TO ANTAGONIST1 are homologous to copper-trafficking genes from yeast and humans. This plant copper-delivery pathway is required to create functional ethylene receptors. The pathway may also facilitate the transport of copper from senescing leaf tissue. In addition, several other genes have been identified recently that may have a role in copper salvage during senescence.

[Indexed for MEDLINE]

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