Abstract
We investigated morphology, dynamics and origin of cells surrounding the mouth of Hydra vulgaris using the monoclonal antibody L96. This antibody recognises a one cell-thick ring of endodermal epithelial cells exactly at the boundary between endoderm (gastrodermis) and ectoderm (epidermis). L96+ cells can stretch considerably without any cell rupture during mouth opening. Thus, our data prove the existence of a distinct cell population defining hydra's mouth. A model for mouth opening is proposed and the significance of L96+ cells for boundary formation between ectoderm and endoderm is discussed.
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Technau, U., Holstein, T.W. Boundary cells of endodermal origin define the mouth of Hydra vulgaris (Cnidaria). Cell Tissue Res 280, 235–242 (1995). https://doi.org/10.1007/BF00307794
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DOI: https://doi.org/10.1007/BF00307794