Explain the post fertilization process in an angiosperm plant
Answers
Answer:
In plants, fertilization is defined as the fusion of the male and the female gamete to develop into a diploid zygote. After fertilization, a series of event occurs in the zygote to develop into a seed. Let us take an overview of the process of post fertilization, endosperm and embryo formation.
Answer:
Post Fertilization
Post-fertilization is a series of events that takes place after fertilization to develop a seed from an ovule and a fruit from an ovary.
The following events occur in the post-fertilization.
Endosperm development
Embryogeny
Endosperm
Endosperm is a type of tissue, which is present in the seeds of flowering plants during the time of fertilization. Reserve food materials fill in the cells of endosperm tissue. It provides nutrition to the developing embryo in the form of starch. Endosperm development is classified into three types. These are as follows:
Nuclear endosperm formation: In this process, the primary nucleus of endosperm undergoes a nuclear division repeatedly to produce free nuclei without wall formation.
Cellular endosperm formation: During nuclear division, the formation of cell wall occurs and it leads to the cellular endosperm formation.
Helobial endosperm formation: It is an intermediate type of endosperm formation between cellular and nuclear type endosperm formation.
During seed maturation or in the mature seed, the developing embryo may either utilize the endosperm completely or it is used by seed during seed germination.