Fungal Life Cycles
Three ploidy types
Haploid – most fungal hyphae and all spores have haploid nuclei
Diploid
– diploid nuclei are found transiently during
the sexual phase (if present)
Heterokaryon
– unfused nuclei from different parents
occupying the same unit of hypha
Reproduction
Asexual – default mode under stable conditions;
spores are produce
Asexual spore formation:
• chlamydospores (an often thick-walled,
resistant mitospore, formed by many fungi. Unlike conidia, chlamydospores are
often not liberated)
• conidia (formed naked at tips of hyphae)
• budding (cell division)
• fragmentation (of mycelium)
Classification of Fungi