Showing papers by "Gian Gabriele Franchi published in 1980"
TL;DR: The morphological evidence and other features such as the occurrence of mitochondria next or in contact with wall projections lead us to compare the pollen vegetative cell to a transfer-cell.
Abstract: Ultrastructural aspects of pore development inParietaria officinalis L. pollen are described. The main feature is the presence of intine wall projections formed in correspondence to the pores during the late microspore stage and persisting in the shedding pollen. This structure coexists with the tubules occurring in the pore and first appearing as evaginations of the plasma membrane.
16 citations