Fig. 2From: The cellular basis of bioadhesion of the freshwater polyp Hydra Scanning Electron Microscopy. a Outer aspect of the basal disc. Arrows point at discharged nematocysts. b Basal disc surface. The numbers 1, 2, 3, mark three different basal disc cells. Arrows point at pores between the cells. c basal disc and substrate covered with secretory material. Scale bars 100Â ÎĽm (a), 2Â ÎĽm (b), 10Â ÎĽm (c). Abbreviations: pe, peduncle; bd, basal disc; sm, secretory materialBack to article page