Myriococcum thermophilum CBS 398.93

Credit: Geneviève Quenneville

Genome Project

- Centre for Structural and Functional Genomics, Concordia University

EST Project

- Centre for Structural and Functional Genomics, Concordia University

Species Information (from MycoBank)

Current name

Myriococcum thermophilum (Fergus) Aa 1973  


Papulaspora thermophila Fergus 1971 [1]

Morphic status

Anamorph (teleomorph unknown)

Lineage (from Index Fungorum and CSFG-Studies)

Fungi; Ascomycota; Sordariomycetes; Sordariales; Chaetomiaceae; Myriococcum


Myriococcum thermophilum is occasionally isolated from self-heating compost, and grows well at temperatures from 31-51 oC (2). Several strains of M. thermophilum isolated from European countries are available in public repositories (3).

Interesting Features

Decomposer of lignocellulose

M. thermophilum degrades filter paper and carboxymethyl cellulose at 45 oC and neutral pH, as well as starch (4).

Thermoactive enzymes

The extracellular cellobiose dehydrogenase (CDH) of M. thermophilum has increasingly attracted research interest partially because of its potential applications in biofuel cells and biosensors (5). CDHs are redox enzymes that are able to conduct direct electron transfer with electrodes without the need for redox mediator. CDH of M. thermophilum can catalyze the oxidation of monosaccharides such as glucose, and some di- and oligo-saccharides ,with high turnover rates (6,7).


1. Fergus CL (1971) The temperature relationships and thermal resistance of a new thermophilic Papulaspora from mushroom compost. Mycologia 63: 426-431.

2. Straatsma, G., et al. (1994) Ecology of Thermophilic Fungi in Mushroom Compost, with Emphasis on Scytalidium-Thermophilum and Growth-Stimulation of Agaricus-Bisporus Mycelium. Applied and Environmental Microbiology 60: 454-458.

3. Global Biodiversity Information Facility

4. Chapman ES, Evans E, Jacobelli MC and Logan AA (1975) The Cellulolytic and Amylolytic Activity of Papulaspora thermophila. Mycologia 67: 608-615

5. Stoica L, et al. (2005) Electrochemical investigation of cellobiose dehydrogenase from new fungal sources on Au electrodes. Biosens Bioelectron 20: 2010-2018.

6. Pricelius S, et al (2009) Substrate specificity of Myriococcum thermophilum cellobiose dehydrogenase on mono-, oligo-, and polysaccharides related to in situ production of H2O2. Appl Microbiol Biotechnol 85: 75-83.

7. Harreither W, et al. (2007) Investigation of graphite electrodes modified with cellobiose dehydrogenase from the ascomycete Myriococcum thermophilum. Electroanalysis, 19: p. 172-180.