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Mesoderm migration in the Xenopus gastrula

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Academic year: 2020

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Figure

Fig.2.FilamentousactininHM cells.CellsmigratingonFN werefixed,and theirupper partswereremovedby exposingcells to the sur-facetensionofthefixativesolutionThelower,substrate-apposedcytoskeletonremainedin place.Filamentousactinwasvisualizedbystainingwithrhodamine-phalloidine.Lamelfrpodia(arrows)showpromi-nentstaining.Weaklystainingactinfilamentbundles.butno stressfibers, are present in the lower cell cortex{arrowhead},Bar, 25 !-fm.
Fig. 3. Migrationcells on the SCR.
Fig. 4. Changein cell sortingbehavioraccompanyingmesoderminvolution. Preinvolutionmesoderm(PM) and involutedmesoderm(1M)is placed on a piece of BCR
Fig. 6. Directionalmesodermmigrationon conditionedsubstrate.(a) A piece of BCR (stippled), with known orientation (DL,dorsal blasto-pore lip; AP

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