1. Beneath this layer, the secreted 80 Å-plasmalemma particles accumulate.

2. Just before the nuclear division of the uninucleate Amoebula, the spherulosome membranes seemed to fuse with the Amoebula plasmalemma

3. Closely adpressed membrane arrays appear between the cell wall and plasmalemma. These are accumulated in bundles at various places in the cell and are later found in presumed autophagic vacuoles.

4. Helminthosporal reacts directly with both the plasmalemma and the tonoplast membranes of the beet root cell, exclusive of effects on respiration, since the loss of betacyanin was equally rapid under aerobic or anaerobic conditions.

5. The thinning of the acrosome in the equatorial segment allows the penetration of postnuclear-cap material both into the subacrosomal space and into the transition zone between the acrosome and the plasmalemma to produce an 'overlap' structure in this region.