Question

What is zygotic embryogenesis?

Answer 1

The process of fusion of male and female gametes is known as fertilization. Plants exhibit sexual reproduction in which the male gametes are pollen derived from anthers and female gametes are an egg cell present in the ovary part of the pistil.

Complete answer:
Zygotic embryogenesis, also known as zygogenesis is the primary step of embryogenesis. After fertilization, the zygote undergoes dynamic adjustments in its morphology and physiology. The stage of fusion of the entire gametes from the primary mitotic stage lasts from several hours to a few days. This stage is known as the zygotic stage. This segment is known as the "resting level", which emphasizes the lack of cellular division. In maize, the length of this segment stages from thirteen hours to sixteen hours. During this period of division, the zygote exhibits vivid physiological activity. Further, the cell undergoes conformational changes in its sizes, shapes, and cellular organization of organelles. When the zygote matures and the subsequent cellular division takes place for the maturation of the embryo, polarization takes place. Polarization results in the generation of vegetative organs in the plant body and the development of the embryo in a mature plant. The zygote undergoes polarization by developing a dense nucleus surrounded by cytoplasm.

Note:
Plants also reproduce asexually. There are various methods by which plants reproduce such as budding, fragmentation, vegetative propagation, sporulation, etc. Budding is a process in which a new individual comes out of the parent through a bud. The parent plant gets fragmented and each fragment grows into a new individual in fragmentation. Some plants produce spores that are dispersed through dispersal methods and are matured into new plants.