Endosperm Formation | Types of Endosperm (Class 12)

Post Fertilisation Events in Plants – Endosperm Development
Sexual Reproduction in Flowering Plants , Class 12 Biology
Fertilisation and Post-fertilisation Changes in the Flower
Endosperm & its Types in English | Sexual Reproduction in Plants English
NCERT Class 12 Biology Chapter 2, CBSE Class 12 Biology
Endosperm formation | Biology Class 12 | CBSE | HSC | NEET


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Events of double fertilization are: endosperm development, embryo development, maturation of ovule(s) into seed(s) and ovary into fruit, are collectively termed post-fertilisation events
The primary endosperm nucleus (PEN) divides repeatedly, mitotically and forms a nutritive tissue called Endosperm. Formation of triploid PEN triggers the cell division, which leads to the formation of endosperm. Cells of Endosperm tissue are filled with reserve food materials. Endosperm nourishes the developing embryo Endosperm development precedes embryo development.
Depending upon the mode of development three types of endosperm are recognized in angiosperms: Nuclear endosperm, Cellular endosperm and Helobial endosperm
Ruminate endosperm: The endosperm with irregularity and unevenness in its surface forms ruminate endosperm. Ex : Passiflora and Myristica (nutmeg)
Mosaic Endosperm : Endosperm containing tissues of two different types is called mosaic endosperm. In plants like corn the endosperm contains patches of two different colours.

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