Establishment and expression of cellular polarity in fucoid zygotes.

  title={Establishment and expression of cellular polarity in fucoid zygotes.},
  author={Darryl L. Kropf},
  journal={Microbiological reviews},
  volume={56 2},
Zygotes of fucoid algae have long been studied as a paradigm for cell polarity. Polarity is established early in the first cell cycle and is then expressed as localized growth and invariant cell division. The fertilized egg is a spherical cell and, by all accounts, bears little or no asymmetry. Polarity is acquired epigenetically a few hours later in the form of a rhizoid/thallus axis. The initial stage of polarization is axis selection, during which zygotes monitor environment gradients to… CONTINUE READING


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