The asymmetric division of the Arabidopsis zygote: from cell polarity to an embryo axis |
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Authors: | Zhongjuan Zhang Thomas Laux |
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Institution: | (1) Faculty of Biology, Albert-Ludwigs University Freiburg, Sch?nzlestrasse 1, 79104 Freiburg, Germany;(2) Freiburg Institute of Advanced Studies, University of Freiburg, Albertstr. 19, 79104 Freiburg, Germany |
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Abstract: | During plant embryogenesis, a simple body plan consisting of shoot and root meristem that are connected by the embryo axis
is set up by the first few rounds of cell divisions after fertilization. Postembryonically, the elaborate architecture of
plants is created from stem cell populations of both meristems. Here, we address how the main axis (apical-basal) of the plant
embryo is established from the single-celled zygote and the role that the asymmetric division of the zygote plays in this
process. We will mainly draw on examples from the model plant Arabidopsis, for which several key regulators have been identified during the last years. |
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