“…It is, therefore , suggested that the cisternae migrate to the equatorial zone and vesiculate there , and that these vesicles then turn into the pectin vesicles by accumulation of the pe ctic sub stances. During meiosis, as the cisternae vesiculate early at diakinesis , there are no cisternae to form a lattice-work (Maruyama 1966) . Instead, however, the vesicles and the vacuoles migrate to the equatorial region and form the pectin vesicles.…”