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ENDOSPERM DEVELOPMENT IN ANGIOSPERMS

  1. Endosperm develops from the triploid primary endospermic nucleus (PEN).
  2. The PEN divides and redivides by mitosis to form a tissue called endosperm.
  3. Endosperm grows faster than the embryo and gets surrounded around the embryo.
  4. In some plants, endosperm is completed utilized by the developing embryo and as a result there is no endosperm in the mature seeds. This type of seed without endosperm is called non endospermic (exalbuminous). Example: Ground nut, Pea.
  5. In some plants, endosperm is partially utilized by the developing embryo and as a result there is endosperm in the mature seeds. This type of seed with endosperm is called endospermic (albuminous). Example: Maize, Castor.
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