Chapter : 6. Reproduction
Fertilization in Plants
Fertilization in Plants :
Pollination is followed by fertilisation in plants.
After reaching the stigma, the pollen grain develops the pollen tube.
This pollen tube grows through the style and reaches the ovary where ovules are located.
The pollen tube enters the ovule through a small opening called micropyle, where it releases two male gametes into the embryo sac.
One male gamete fuses with the egg contained in the embryo sac of the ovule; and this fusion of male and female gametes is called syngamy and its product is the zygote.
The other male gamete fuses with the two polar nuclei and this process is called triple fusion, where three nuclei are involved in the fusion process, one male gamete and two polar nuclei.
The process of double fertilisation occurs inside each embryo sac, in which two fusions, syngamy and triple fusion take place.
After fertilisation, ovary develops into the fruit and ovules develop into the seeds.
Pollination is followed by fertilisation in plants.
After reaching the stigma, the pollen grain develops the pollen tube.
This pollen tube grows through the style and reaches the ovary where ovules are located.
The pollen tube enters the ovule through a small opening called micropyle, where it releases two male gametes into the embryo sac.
One male gamete fuses with the egg contained in the embryo sac of the ovule; and this fusion of male and female gametes is called syngamy and its product is the zygote.
The other male gamete fuses with the two polar nuclei and this process is called triple fusion, where three nuclei are involved in the fusion process, one male gamete and two polar nuclei.
The process of double fertilisation occurs inside each embryo sac, in which two fusions, syngamy and triple fusion take place.
After fertilisation, ovary develops into the fruit and ovules develop into the seeds.
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