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Melanin, Fungi, and Global Warming

Episode 82 Published 1 year, 6 months ago
Description
Matters Microbial #82: Melanin, Fungi, and Global Warming March 13, 2025

Today, the impressive Dr. Arturo Casadevall of Johns Hopkins University returns to the podcast to discuss how fungal disease is a looming threat on our warming planet, and how these organisms can use pigmentation to adapt to human-associated environments . . . and increase their chances of causing disease.

Host: Mark O. Martin

Guest: Arturo Casadevall

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Links for this episode
  • A video overview of the understudied world of fungi.
  • A CDC overview of fungal diseases.
  • A hopeful study: fungi, frogs, and purple bacteria. A less scholarly but highly recommended essay is here.
  • Dr. Casadevall's earlier visit to #MattersMicrobial.
  • The story of Alexander Fleming, a stray fungal spore, and penicillin.
  • The story of fungi and cyclosporins, which help with organ transplantation in humans.
  • A recent New York Times article on fungal networks.
  • An article about mass extinctions and "fungal overgrowth."
  • A review of the structure and function of melanin.
  • An overview of how melanin can be used to turn various forms of radiation into energy.
  • A review of high body temperatures versus fungal infections.
  • One of the articles discussed today, from Dr. Casadevall's group: "Impact of Yeast Pigmentation on Heat Capture and Latitudinal Distribution."
  • Another article from Dr. Casadevall's group discussed today: "The hypothermic nature of fungi."
  • A really fascinating preprint from Dr. Casadevall's group discussed today: "Thermal and pigment characterization of environmental fungi in the urban heat island of Baltimore City"
  • Dr. Casadevall's faculty website.
  • The research website for Dr. Casadevall's group.

Intro music is by Reber Clark

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