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Eukaryotic Cell, March 2008, p. 541-545, Vol. 7, No. 3
1535-9778/08/$08.00+0     doi:10.1128/EC.00463-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

A Ferroxidase Encoded by FOX1 Contributes to Iron Assimilation under Conditions of Poor Iron Nutrition in Chlamydomonas{triangledown} ,{ddagger}

Jen-Chih Chen,{dagger} Scott I. Hsieh, Janette Kropat, and Sabeeha S. Merchant*

Department of Chemistry and Biochemistry, Box 951569, University of California—Los Angeles, Los Angeles, California 90095-1569

Received 26 December 2007/ Accepted 18 January 2008

When the abundance of the FOX1 gene product is reduced, Chlamydomonas cells grow poorly in iron-deficient medium, but not in iron-replete medium, suggesting that FOX1-dependent iron uptake is a high-affinity pathway. Alternative pathways for iron assimilation, such as those involving ZIP family transporters IRT1 and IRT2, may be operational.

* Corresponding author. Mailing address: Department of Chemistry and Biochemistry, Box 951569, University of California—Los Angeles, Los Angeles, CA 90095-1569. Phone: (310) 825-8300. Fax: (310) 206-1035. E-mail: sabeeha{at}chem.ucla.edu

{triangledown} Published ahead of print on 1 February 2008.

{ddagger} Supplemental material for this article may be found at http://ec.asm.org/.

{dagger} Present address: Institute of Biotechology, National Taiwan University, Taipei 106, Taiwan.

Eukaryotic Cell, March 2008, p. 541-545, Vol. 7, No. 3
1535-9778/08/$08.00+0     doi:10.1128/EC.00463-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Page, M. D., Kropat, J., Hamel, P. P., Merchant, S. S. (2009). Two Chlamydomonas CTR Copper Transporters with a Novel Cys-Met Motif Are Localized to the Plasma Membrane and Function in Copper Assimilation. Plant Cell 21: 928-943 [Abstract] [Full Text]  
  • Long, J. C., Sommer, F., Allen, M. D., Lu, S.-F., Merchant, S. S. (2008). FER1 and FER2 Encoding Two Ferritin Complexes in Chlamydomonas reinhardtii Chloroplasts Are Regulated by Iron. Genetics 179: 137-147 [Abstract] [Full Text]  


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