X-Bodies in Ovules

X-bodies are specialized structures found in the ovules of flowering plants. They are named X-bodies because of their characteristic X-shape. The function of X-bodies is not fully understood, but they are believed to play a role in fertilization and embryonic development.

Structure of X-Bodies

X-bodies are made up of two polar nuclei, which are large cells found in the central cell of the ovule. The polar nuclei are surrounded by a layer of cytoplasm, which is connected to the egg cell by a filiform apparatus. The filiform apparatus is a structure that helps to guide the pollen tube to the central cell during fertilization.

Function of X-Bodies

The function of X-bodies is still not fully understood, but they are believed to play a role in fertilization and embryonic development. During fertilization, the pollen tube grows through the stigma and style and enters the ovule. The pollen tube then releases two male nuclei into the central cell, where they fuse with the two polar nuclei to form a triploid nucleus. This nucleus then divides to form the endosperm, which is a nutrient-rich tissue that supports the developing embryo.

Conclusion

In conclusion, X-bodies are specialized structures found in the ovules of flowering plants. They are made up of two polar nuclei and are believed to play a role in fertilization and embryonic development. While their exact function is still not fully understood, X-bodies are an important part of the reproductive process in flowering plants.

X-bodies found in filiform apparatus there function are unknown so they known as x-bodies