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Quick-freeze deep-etch view of a collecting canal lying next to a
contractile vacuole. The E-face (Ecc) of the
collecting canal is extremely porous indicating that large numbers of
IMPs were removed from this leaflet during fracturing. The two larger
pores (arrowheads) are fractured necks where the smooth
spongiome empties into the canal. The lumen (lucv)
of the contractile vacuole contains unetchable material forming a
unique pattern that resembles rows of colloidal particles. The lumen
of the collecting canal (lucc) has similar material.
The P-face (Pcc) of the collecting canal is studded
with a large number of IMPs. EM taken on 5/26/92 by R. Allen with
Zeiss 10A TEM. Neg. 19,800X. Bar = 0.2µm. Part published in Int. Rev.
Cytol. 198:277-318, 2000.
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