reproduction of fungi-part1, eucarpic and holocarpic fungus, asexual reproduction.
Channel: Biology By Neha Binwal
Date: 2021-03-13

reproduction in fungi, eucarpic fungus- when the part of vegetative mycelium get converted into reproductive unit.
Holocarpic fungus- in unicellular fungus when whole vegetative cell get converted into reproductive unit.
Asexual reproduction takes place during favorable conditions by the formation of the variety of conidia and spores.
Spores may be unicellular or multicellular, and can be produced exogenous and endogenous.
Some common asexual spores produced in fungi are- zoospores, chlamydospores, oidia, aplanospores.
With the exception of the class Deuteromycetes, sexual reproduction occurs in all groups of fungi.
In Deuteromycetes sexual phase is completely absent.
The process of sexual reproduction is completed in the following 3 distinct phases-
1. Plasmogamy- fusion of the protoplast of two compatible gametes or sex cells.
2. Karyogamy- fusion of the two nuclei from the two fusing gametes.
Dikaryon- In Ascomycetes and Basidiomycetes karyogamy is much delayed. The nucleus get themselves arranged in (dikaryon). This phase in life-cycle is known as Dikaryophase and the process is known as Dikaryotization. 
3. Meiosis- after karyogamy, reductional division takes place in the diploid nucleus, and the haploid phase is reestablished.