What does the fertilized egg develop into in a plant fertilized egg to form a seed?

The fertilized egg develops into the embryo, the fertilized polar nucleus develops into the endosperm, and the integument develops into the seed coat, which in turn consists of the integument, the oocyte, and the polar nucleus, and the integument develops into the seed coat. There are two sperms in the pollen tube of green flowering plants, one of which fuses with the oocyte near the bead pore to form a fertilized egg, and another sperm fuses with the two polar nuclei in the ovule to form a fertilized polar nucleus, which is the double fertilization unique to green flowering plants.

When fertilization of the ovule is completed, the fertilized egg develops into an embryo, the fertilized polar nucleus develops into endosperm, the bead cover develops into the seed coat, the whole ovule develops into a seed, the wall of the ovary develops into the fruiting skin, and the whole ovary develops into a fruit.

Expanded Information

Embryogenesis (plants) the syncytium divides to two to four free nuclei, moved to the bottom of the cervical ovipositor, and continues to divide to form eight free nuclei, when the cell wall appears. These eight cells are divided into two cell groups, the upper layer of 4 to 6 cells for the open layer, the cells below are arranged irregularly, 4 to 2, is the primary embryo cell group. The open layer divides once more to form two layers with equal numbers of cells.

The upper layer is the upper layer, the protoplasm is still connected with the egg cell, and later degenerates. The lower layer is the proembryonic stalk layer, with slightly extended cells and nuclei. Because of the variable number of cells in the primordial embryo and the inconsistent division sequence, the number of primordial cells in the embryo is also not certain, commonly four to seven, and the arrangement is irregular. These processes are carried out in the cervical egg apparatus, called proto-embryonic development.