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Science 12 August 1966:
Vol. 153. no. 3737, pp. 751 - 752
DOI: 10.1126/science.153.3737.751
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Articles

Zinc and Cobalt: Effect on the Iron Metabolism of Ustilago sphaerogena

H. Komai 1 and J. B. Neilands 1

1 Department of Biochemistry, University of California, Berkeley

The ferrichrome content of cells of the smut fungus Ustilago sphaerogena during growth in a medium deficient in zinc increases with increase in the cobalt of the medium from 0 to 3 X 10-5M. The addition of zinc to such cultures prevents the accumulation of ferrichrome. The results suggest that zinc is involved in the utilization of iron via a process which can be blocked by cobalt.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)