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1 Department of Biology, University of Utah, Salt Lake City, Utah 84112
Understanding the mechanism by which a fertilized egg establishes an embryonic axis is of fundamental importance to the study of developmental biology. Much of what we have learned about axis formation in plants derives from investigations of fucoid algae. In this report I review the data concerning the role of Ca2+ in the early development of Fucus and Pelvetia. The evidence shows that Ca2+ plays an important role in germination and rhizoid growth, but its function in polarization remains uncertain.
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