Pollination and fertilization process

Generative nucleus undergoes mitosis to form two male gametes pollen settles on a mature stigma stigma secretes a sugary fluid pollen grain breaks, germinates and produces a pollen tube tube cell nucleus directs the pollen tube to grow downwards towards the ovule enzymes are secreted to digest the stigma and style pollen tube goes down the style into the ovary, enters the ovule through the micropyle pollen tubes tip absorbs the sap and bursts, releasing the two male gametes