Non-recurrent type as mentioned earlier it refers to embryo, Ask an Expert

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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.

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Biology, Academics

Category:- Biology
Reference No.:- M9519293

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