XB-IMG-146031
Xenbase Image ID: 146031
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Fig. 4. The changing pattern of localized
[Ca2+]i transients that occur in the dorsal
ectoderm during gastrulation. (A) Images of a
representative embryo at stages 8-9, 10, 11, 12
and 13, on to which are superimposed yellow
spots to mark the position of each localized
Ca2+ transient observed throughout each
stage. (B) Drawings reconstructed from the
corresponding video images of A.
(C) Drawings of animal-vegetal (upper) and
sagittal (lower) sections of embryos at stages
9 and 10, respectively. Superimposing the
images in A on the drawings in B illustrates
the distribution of the positions of the
localized calcium transients relative to the
anteroposterior axis of the dorsal ectoderm
and the blastopore lip observed at each
developmental stage. The approximate extent
of this distribution is illustrated by the red
shaded region in B. AC, animal cap; NIMZ,
noninvoluting marginal zone; IMZ, involuting
marginal zone. Scale bar, 0.5 mm.
(D) Histogram showing the amplitude of the
transients versus developmental stages. Image published in: Leclerc C et al. (2000) Copyright © 2000. Image reproduced with permission of the Publisher, The Company of Biologists Ltd. Larger Image Printer Friendly View |
