FIGURE

Fig. 6

ID

ZDB-FIG-230202-27

Publication

Huysseune et al., 2021 - The conundrum of pharyngeal teeth origin: the role of germ layers, pouches, and gill slits

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Fig. 6

Germ layer contribution to oropharyngeal epithelium and teeth in lungfish and amphibians. (A) Lepidosiren paradoxa; drawing of a sagittal section of a stage 30 specimen (after Kerr, 1903); drawing mirrored to show anterior to the left. b, yolk-laden cells in the buccal cavity; e1, superficial ectodermal layer; e2, basal ectodermal layer; st, lining epithelium of buccal cavity arising in situ. (B) Ambystoma mexicanum; drawing of a similar section to A, embryo of 7.5 mm length (after Kerr, 1903; drawing mirrored to show anterior to the left). (C, D) Neoceratodus forsteri, cusp of pterygopalatine tooth plate [from Kemp, 2002a, with permission from the author and publisher]. c, circumdenteonal dentine; e, enamel; m, mantle dentine; t, trabeculae; y, yolk remnants. Scale bars: C = 100 μm; D = 20 μm. (E) Ambystoma mexicanum; sagittal section of a stage 43 embryo; compare with F. Tooth buds indicated by arrowheads. m, mouth opening. Scale bar = 50 μm. (F) Ambystoma mexicanum; transgenic embryo of stage 43 with green fluorescent protein (GFP) labelling in the ectoderm [modified from Soukup et al., 2008, courtesy of the authors]. Arrowheads: tooth buds arising in ectoderm; m, mouth opening. Scale bar = 50 μm.

Expression Data

Expression Detail

Antibody Labeling

Phenotype Data

Phenotype Detail

Acknowledgments

This image is the copyrighted work of the attributed author or publisher, and ZFIN has permission only to display this image to its users. Additional permissions should be obtained from the applicable author or publisher of the image. Full text @ Biol. Rev. Camb. Philos. Soc.