Xenbase Image ID: 83245

Fig. 9 (Left). Evidence of cell convergence on artificial folds and ectodermal �scrolls�. (A) A scheme of fold preparation; an ectodermal tissue piece situated lateral to the dorsal mid-line of a gastrula stage embryo is cut off, bent as shown by a dashed line and fixed in this position by a needle. (B,C) Protrusions formed in 10-15 h out of the bent folds (opposite to the needles). (D) If a framed region of lateral ectoderm is extirpated from the neurula stage embryo, it rolls spontaneously into a scroll, its longitudinal axis coinciding with that of embryo (E). Soon the scroll is transformed into a meridionally shrunk body with many transversal grooves and ribs (F,G). Times after scroll formation are shown. Image published in: Beloussov LV et al. (2006) Copyright © 2006. Reproduced with permission of the Publisher, University of the Basque Country Press. Larger Image Printer Friendly View

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