spacer gif spacer gif spacer gif spacer gif ARCHIVE ANNOUNCEMENT! spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

Right arrow Help viewing high resolution images
Right arrow Return to article
(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.


Figure 9


Fig. 9. Activation of Smad2 inhibits neural induction in Xenopus explants. (A) Activation of Smad2 by DEX at blastula to early gastrula stages suppressed neural induction by noggin and induced mesodermal markers in animal caps; but it could not do so efficiently if activated at mid- to late gastrula stages. noggin (10 pg) and GR-Smad2 (0.2 ng) RNAs were used. (B) Activin protein (1:50 dilution of oocyte conditioned medium) reduced neural and induced mesodermal markers in dorsal ectoderm explanted from stages 11-11.5 embryos, but not from stage 12 embryos. (C) Unlike dorsal ectoderm, ventral ectoderm did not respond to activin efficiently at mid-gastrula stages (stage 11 onward).





Right arrow Return to article