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Home • Rasamsonia emersonii NRRL 3221
Photo of Rasamsonia emersonii NRRL 3221
Photo credit: Genevieve Quenneville, Sandrine Marqueteau and Marie-Claude Moisan

The genome sequence and gene prediction of Rasamsonia emersonii NRRL 3221 have not been determined by the Joint Genome Institute (JGI), but were downloaded from CSFG on July 31, 2022. In order to allow comparative analyses with other fungal genomes sequenced by the JGI, a copy of this genome is incorporated into Mycocosm. Please note that this copy of the genome is not automatically updated. JGI tools were used to automatically annotate predicted proteins.

Rasamsoni emersonii, basionym Talaromyces emersonii is a thermophilic from the Trichocomaceae family, with growth optimum at 55 ºC. Rasamsonia emersonii strains have been isolated from compost, soil, and outdoor air (1,2). Several studies have characterized secreted thermostable enzymes involved in the degradation of lignocellulolytic material (3-5). The genome of R. emersonii will provide valuable information on secreted thermostable enzymes and allow comparison with other thermophilic fungi.

Note: If you intend to publish any articles including Rasamsonia emersonii NRRL 3221 genomic data, please contact Adrian Tsang for permission prior to publication: [email protected]



1. Houbraken, J., Spierenburg, H. & Frisvad, J.C. Rasamsonia, a new genus comprising thermotolerant and thermophilic Talaromyces and Geosmithia species. Antonie van Leeuwenhoek 101, 403–421 (2012). 
2. Morgenstern I, Powlowski J, Ishmael N, Darmond C, Marqueteau S, Moisan MC, Quenneville G, Tsang A. A molecular phylogeny of thermophilic fungi. Fungal Biol. 2012 Apr;116(4):489-502.
3. Waters DM, Ryan LA, Murray PG, Arendt EK, Tuohy MG. Characterisation of a Talaromyces emersonii thermostable enzyme cocktail with applications in wheat dough rheology. Enzyme Microb Technol. 2011 Jul 10;49(2):229-36.
4. Nielsen BR, Lehmbeck J, Frandsen TP. Cloning, heterologous expression, and enzymatic characterization of a thermostable glucoamylase from Talaromyces emersonii. Protein Expr Purif. 2002 Oct;26(1):1-8.
5. Simila J, Gernig A, Murray P, Fernandes S, Tuohy MG. Cloning and expression of a thermostable alpha-galactosidase from the thermophilic fungus Talaromyces emersonii in the methylotrophic yeast Pichia pastoris. J Microbiol Biotechnol. 2010