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Phycomyces Conjugation

Image of <i>Phycomyces blakesleeanus</i> Burgeff 1925

Description:

No privacy for randy fungi in botany lab... *LOL* Pushing the covering of hyphae aside reveals a close-up look at two mycelia of Phycomyces getting together for a sex orgy. You can see the hyphae "kissing" each other in conjugation, which leads to the fusion of the thickened gametangia at the end of the hyphae. After fusion, the structure develops into a spiky zygosporangium where the zygospore - the only diploid cell in the fungal life cycle - will develop and finally undergo meiosis to germinate into new hyphae.Phycomyces blakesleeanus is frequently used in teaching and research. This was a commercially available agar plate with (+) and (-) mating types each growing on one half of the plate and forming a zone of conjugation down the middle where the two strains met.

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