Fucus Embryogenesis: A Model to Study the Establishment of Polarity.

  title={Fucus Embryogenesis: A Model to Study the Establishment of Polarity.},
  author={Brad W. Goodner and Ralph S. Quatrano},
  journal={The Plant cell},
  volume={5 10},
It has been known for more than 100 years that when spherical zygotes of the brown alga Fucus are subjected to a gradient of light, the plane of the first cell division is always perpendicular to the light axis. As illustrated in Figure 1, the resulting cell plate divides the zygote into two unequal cells; the smaller rhizoid cell emerges from the shaded portion of the gradient, whereas the larger thallus cell is on the lighted side (Figures 1A to 1C). Each cell has a different organellar… CONTINUE READING


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