Petal Microsporangium Stigma Microspores Anther Tapetum Filament. Style Stamen Anther- Carpel Sepal Filament 6
6
Meiosis Microspore Wall development Pollen grain Mitosis Pollen germination Sperm nuclei Tube nucleus 7
7
Megaspore mother cell Meiosis Antipodal Micropyle Polar Surviving nuclei megaspore 。0 Synergid /Egg Embryo sac Integuments Micropyle Antipodal cells (3) Rearrangement of nuclei Polar nuclei (2) Egg (arge) Synergid cells 8
8
Endosperm nucleus (from 3 nuclei) Pollen Zygote germination (from 2 nuclei) Growth of Nuclear fusion pollen tube within embryo toward sac female gametophyte Pollen tube 9
9
Three antipodal cells Pollen tube Generative nucleus Tube nucleus Polar nuclei Egg Synergids Sperm nuclei 10
10