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Marshall Tyler

4 papers in the library · 21 citations · publishing 2023-2025

Papers

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Toward Standardized Products Containing Biomass of Psilocybe Cubensis Fungi

Journal of AOAC International August 13, 2025 Kimberley Foster, Isaac Morrison, S. Daniel et al. 4 citations

Abstract Background The consumption of dried fruiting bodies of Psilocybe cubensis can be traced over centuries, guided by Mesoamerican curanderas, Western medical practitioners, and fungal enthusiasts, all seeking mental wellbeing. There is a notable resurgence in interest both in the fungal biomass and psilocybin, the psychoactive tryptamine, despite the global regulatory restrictions,...

High-quality draft genomes of ecologically and geographically diverse Psilocybe species

Microbiology Resource Announcements December 27, 2024 Harte Singer, Jordan Jacobs, Marshall Tyler et al. 3 citations

ABSTRACT Psilocybe is a genus of mushroom-forming fungi with ecological, ethnomycological, and clinical importance due to psilocybin production by most species. We present five genomes that enable deeper discovery and analysis of the psilocybin gene cluster and increase taxonomic resolution within Psilocybe : Psilocybe semilanceata , Psilocybe gandalfiana nom. prov., Psilocybe caeruleorhiza ,...

The effect of casing and gypsum on the yield and psychoactive tryptamine content of Psilocybe cubensis (Earle) Singer.

Fungal biology February 1, 2024 Kimberley Foster, Isaac Morrison, Marshall Tyler et al. 3 citations

Psychedelic fungi have experienced a surge in interest in recent years. Most notably, the fungal secondary metabolite psilocybin has shown tremendous promise in the treatment of various psychiatric disorders. The mushroom species that produce this molecule are poorly understood. Here we sought to examine for the first time, the response of a psilocybin-producing species Psilocybe cubensis to...

In silico characterization of the psilocybin biosynthesis pathway.

Computational biology and chemistry June 1, 2023 William Irvine, Marshall Tyler, Rupika Delgoda 11 citations

Nearly all mushrooms of the Psilocybe genus contain the natural product psilocybin, which is a psychoactive alkaloid derived from l-tryptophan. Considering their use in ancient times, as well as their psychedelic properties, these mushrooms have re-emerged with psychotherapeutic potential for treating depression, which has triggered increased pharmaceutical interest. However, the psilocybin...