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This cell was incubated in tannic acid after it had been fixed for
electron microscopy. The tannic acid was able to enter the collecting
canal, presumably through a break in the cell surface at or near the
CV pore which permitted the tannic acid to permeate the collecting
canal thereby showing the associations between the collecting canal
with the smooth spongiome. The tannic acid was also found to enter the
decorated tubules (ds) establishing a connection between the
smooth and decorated spongiomes. EM taken on 1/19/94 by M. Ishida with
Zeiss 10A TEM. Neg. 19,800X. Bar = 0.2µm. Published in J. Eukaryot.
Microbiol. 49:185-196, 2002.
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