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. 2002 Mar 18;156(6):1003–1013. doi: 10.1083/jcb.200111093

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Copyright © 2002, The Rockefeller University Press

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Figure 8. — A biophysical model for morphogenesis of wt and knf embryos. Growth of a wt embryo requires differential reinforcement of the epidermis by cellulose and can be modeled as a cylinder. Because of decreased cellulose reinforcement of the epidermis, growth of a knf embryo resembles the enlargement of a sphere. Top, tracings of wt (left) and knf (right) heart and torpedo stage embryos shown at the same scale. Bottom, the relative tension (T) experienced in different directions by the wall of a hollow cylinder or sphere.