Understanding Endosperm Development
Endosperm development is a critical process in seed formation, particularly in flowering plants (angiosperms). It serves as the nutritive tissue for the developing embryo.
Sequence of Development
- Endosperm development occurs shortly after fertilization.
- It provides essential nutrients that support the growth of the embryo during its early stages.
Relation to Embryo Development
- The development of the endosperm precedes embryo formation:
- The endosperm forms first, primarily to supply energy and nutrients to the embryo as it begins to develop.
- This sequence ensures that the embryo has adequate resources for growth once it starts developing.
Process Overview
- Fertilization: After the pollen tube delivers sperm cells to the ovule, one sperm fertilizes the egg cell to form the zygote, while the other sperm fuses with two polar nuclei to form the triploid endosperm.
- Endosperm Formation: This triploid tissue proliferates and differentiates, creating a nutrient-rich endosperm.
- Embryo Development: Following endosperm formation, the zygote develops into the embryo, relying on the endosperm for nourishment during its initial growth phases.
Conclusion
In conclusion, the correct answer is option 'B' because endosperm development is a prerequisite for the proper formation and growth of the embryo, ensuring that the embryo has the necessary sustenance for successful development. This process highlights the intricate coordination between different structures during plant reproduction.