|
Remnant trichocyst membrane does not appear to directly enter the
trans Golgi network (tGn) for reuse in new trichocyst
formation. Rather the HRP will be transferred to lysosomes (not shown)
so the membrane presumably becomes part of the lysosomal membrane and
eventually part of the phagolysosome digestive vacuole. The HRP
content will be subjected to digestion. Exactly what happens to all
the excess membrane is unknown although it probably becomes part of
the cell’s overall membrane pool which must be continuously
synthesized and replenished as it is halved at each cell division that
occurs at 24 hour intervals. EM taken on 4/12/79 by R. Allen with
Hitachi HU11A TEM. Neg. 14,750X. Bar = 0.25µ
|
