Question

Tell me about the phase dikaryon in fungi.​

Answer 1

Answer:

All fungi do not show dikaryophase. Based upon the sexual spores fungi is classified into four subclasses:

Phycomycetes

Ascomycetes

Basidiomycetes

Deuteromycetes

In fungi such as ascomycetes and basidiomycetes, karyogamy is delayed and occurs just before meiosis. In the stage intervening between plasmogamy and karyogamy, the cells often contain two nuclei or dikaryon (n + n). Such cells are called dikaryotic cells. The phase is known as dikaryophase.

Answer 2

Answer:

When a fungus reproduces sexually, two haploid hyphae of compatible mating types come together and fuse. In some fungi the fusion of two haploid cells results in diploid cells. However, in other fungi an intervening dikaryotic stage( n+n ) occurs ; such a condition is called dikaryon and the phase is called dikaryophase of fungus