WEEK 5: POLLINATION AND DEVELOPMENT OF PLANT EMBRYO

On this week, we were introduced more detailed on the pollination in plants. The structure of plant’s reproductive organs. For female, it is called ovule that consists of a megasporangium, megaspore and one or more protective interguments. For male, it is called anther that consists of microsporangium. Plants will go through either self-pollination or cross-pollination. If the flower’s structures are separated, it will undergo cross-pollination and if the structures are together, it will undergo self-pollination, but even though the structures stay together in the flower, it can  undergo cross-pollination because the anther is shorter than the stigma so it cannot pass the pollen grains to the stigma.

Plant embryogenesis is the process that produces a plant embryo from a fertilized ovule by asymmetric cell division and the differentiation of undifferentiated  cells into tissues and organs. Plant embryogenesis can be divided into two which are zygotic embryogenesis and somatic embryogenesis. Zygotic embryogenesis is a fertilization of female and male gametes results in the formation of embryo and later the seed. While somatic embryos are formed from plant cells that are normally not involved in the development of embryos.

 The species of flowers can be spread by the agents such as bees and even the winds.

This is some points that I learned in this topic but of course there are other important points. To be honest, I really do not like to study about plants. For me, human’s body is more interesting than plant’s structure but I try to enhance my interest on plants. I also think that plant studies are difficult and people who want to further their studies on plants need to have a deeply passion about plants.