Noun
plasmogamy (uncountable)
(mycology) Stage of sexual reproduction joining the cytoplasm of two parent mycelia without the fusion of nuclei.
The nuclei in the antheridium then migrate into the ascogonium, and plasmogamy —the mixing of the cytoplasm —occurs. Source: Internet
Unlike in animals and plants, plasmogamy is not immediately followed by the merging of the nuclei (called karyogamy ). Source: Internet