Non-recurrent type, Biology

Non-recurrent Type

As mentioned earlier it refers to embryo development in reduced embryo sacs. The mechanisms identified for such cases are:

  • Reduced Pseudogamy: The reduced egg develops in a pseudogamous, and parthenogenic manner. The pollen tube enters normally but the male gamete fails to fuse with the egg and disintegrates in the cytoplasm of egg.
  • Reduced Parthenogenesis: Embryo development is accomplished by heat or cold treatment.
  • Androgenesis: The egg nucleus degenerates, the sperm nucleus functions in the cytoplasm of the egg and produces the embryo.
Posted Date: 1/23/2013 6:20:27 AM | Location : United States

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