What happens to integument after fertilization?

After fertilization, the integument of the ovule undergoes significant changes. It typically develops into the seed coat, providing protection to the developing embryo and endosperm. The integument layers differentiate and harden, creating a barrier that helps prevent desiccation and microbial invasion while allowing for nutrient transfer from the parent plant during seed development. This transformation is crucial for the successful maturation and eventual germination of the seed.