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V. convallaria preserved in collidine buffered fixative (not
cacodylate) has a less dense cytoplasm in which oranelles are easier
to recognize. The rough ER has vesiculated but this vesiculation
enhances the identification of loci where ER remains bound to the
myonemes. These loci on the ER are called “linkage complexes”
(lc). (For description and discussion see Allen, J. Cell Biol.
56:559-579, 1973, and J. Protozool. 20:25-36, 1973). These complexes
are unique and have not been reported outside the peritrichs.
mac, macronucleus with nucleolus (no); cp,
cytopharynx at its distal end. EM taken on 3/30/71 by R. Allen with
Hitachi HU11A TEM. Neg. 13,750X. Bar = 0.5µm. Published in part in J.
Cell Biol. 56:559-579, 1973.
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