Oospore

Oospores of Hyaloperonospora parasitica, agent of the downy mildew (in the middle)

An oospore is a thick-walled sexual spore that develops from a fertilized oosphere in some algae, fungi, and Oomycetes. They are believed to have evolved either through the fusion of two species or the chemically-induced stimulation of mycelia, leading to oospore formation.[1]

In Oomycetes, oospores can also result from asexual reproduction, by apomixis. These are found in Fungi as the sexual spores; these help in the sexual reproduction of Fungi.

References

  1. ↑ Uchida, J. Y.; Aragaki, M. "Chemical Stimulation of Oospore Formation in Phytophthora capsici". Mycologia. 72 (6). doi:10.2307/3759563.


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