Barley embryo sacs were examined using light and electron microscopy before and during fertilization.One synergid degenerates after pollination with loss of nuclear and cytoplasmic organization and cell wall material between synergid and central cell.Some wall between egg and central milwaukee 49-22-5603 cell is also lost.After pollen tube discharge into the degenerate synergid, the male gametes leave the synergid entering a pocket of central cell cytoplasm separated from the synergid only by membranes.
This could provide for efficient gamete gotrax rear fender transmission and possible recognition through specific membrane contacts.