White filamentous mold fungus Phycomyces blakesleeanus(?) on feces between houses near Toreza Prospect. Saint Petersburg, Russia, September 4, 2018
Prospekt Toreza, 92, Sankt-Peterburg, Russia, 194017Russian name: Fikomitses Bleksli.
Extract from Wikipedia article: Phycomyces blakesleeanus is a filamentous fungus in the Order Mucorales of the phylum Zygomycota or subphylum Mucoromycotina. The spore-bearing sporangiophores of Phycomyces are very sensitive to different environmental signals including light, gravity, wind, chemicals and adjacent objects. They exhibit phototropic growth: most Phycomyces research has focused on sporangiophore photobiology, such as phototropism and photomecism ('light growth response'). Metabolic, developmental, and photoresponse mutants have been isolated, some of which have been genetically mapped. At least ten different genes (named madA through to madJ) are required for phototropism. The madA gene encodes a protein related to the White Collar 1 class of photoreceptors that are present in other fungi, while madB encodes a protein related to the White Collar 2 protein that physically bind to White collar 1 to participate in the responses to light.
Phycomyces blakesleeanus is a species of fungus that belongs to the family Phycomycetaceae. In St. Petersburg, Leningrad Oblast, and north-western Russia, it has been found in soil, dung, and decaying organic matter, typically thriving in moist environments with moderate temperatures. The fungus produces sporangia that contain spores, which are dispersed by wind or water, allowing the species to colonize new areas. It is a common inhabitant of shaded, humid locations, such as forests, parks, and gardens, where it contributes to decomposition and nutrient cycling processes.
White filamentous mold fungus Phycomyces blakesleeanus(?) on feces between houses near Toreza Prospect. Saint Petersburg, Russia, September 4, 2018Prospekt Toreza, 92, Sankt-Peterburg, Russia, 194017
Mold fungus Phycomyces blakesleeanus(?) on feces on a foot path in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018г. Павловск, 8 (47362) 2-63-21, Pavlovsk, Russia, 396420Observations of the fungus Phycomyces blakesleeanus in Leningrad Oblast and north-western Russia revealed its presence on feces in urban areas. On September 4, 2018, it was found growing as a white filamentous mold on feces between houses near Toreza Prospect in Saint Petersburg. A similar sighting occurred on September 8, 2018, on a footpath in the New Sylvia area of Pavlovsk Park, a suburb of Saint Petersburg. In both cases, the fungus was associated with fecal matter, suggesting it may be coprophilous, or dung-loving. The fungus's growth on feces in these areas indicates its ability to thrive in nutrient-rich environments. These observations highlight the presence of Phycomyces blakesleeanus in specific habitats within the region, providing insight into its ecological preferences. Further study could explore its distribution and behavior in other areas of Leningrad Oblast and north-western Russia.
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