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Fig. 1a: Vorticella convallaria cytosol and food vacuoles

The following 11 micrographs (a-k) are views of a serially-sectioned contracted Vorticella convallaria cell (obtained from Cambridge Culture Collection, Cambridge, England, # LB1690/1) fixed in collidine buffered solution that show the main features of this cell. Figure 1a shows 3 food vacuoles (fv) (of a total of about 15 in the cell) containing bacteria and part of a trochal band of basal bodies (bb) that surrounds the aboral scopular zone where the stalk originates. EM taken on 4/2/71 by R. Allen with Hitachi HU11A TEM. Neg. 3,150X. Bar = 2µm.
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