Editing Fertilisation (section)

==Fertilisation in fungi==
{{main|Mating in fungi}}
In many [[fungi]] (except [[chytrid]]s), as in some protists, fertilisation is a two step process. First, the cytoplasms of the two gamete cells fuse (called [[plasmogamy]]), producing a [[dikaryon|dikaryotic]] or [[Heterokaryon|heterokaryotic]] cell with multiple nuclei. This cell may then divide to produce dikaryotic or heterokaryotic [[hyphae]]. The second step of fertilisation is [[karyogamy]], the fusion of the nuclei to form a diploid zygote.

In [[chytrid]] fungi, fertilisation occurs in a single step with the fusion of gametes, as in animals and plants.