Bjerkandera adusta, commonly known as the smoky polypore or smoky bracket,[2] is a species of fungus in the family Meruliaceae. It is a plant pathogen that causes white rot in live trees, but most commonly appears on dead wood. It was first described scientifically as Boletus adustus by Carl Ludwig Willdenow in 1787.[3] The genome sequence of Bjerkandera adusta was reported in 2013.[4] The species is inedible.[5]

Bjerkandera adusta
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Meruliaceae
Genus: Bjerkandera
B. adusta
Binomial name
Bjerkandera adusta
Bjerkandera adusta bottom view, pores (tubes) are visible



The fungus grows in shelflike fruit bodies which often overlap. The caps are tomentose to hairy and buff in colour.[6]

The species is often found on decaying wood.[6]

Bjerkandera fumosa is similar; its flesh has a dark line near the base of the tubes. Some members of the genera Stereum and Trametes are similar as well.[6]



Because Bjerkandera adusta produces enzymes that can degrade polycyclic aromatic hydrocarbons, such as those used in synthetic textile dyes, there has been research interest in investigating the fungus for possible use in bioremediation.[7][8] The research on these lignin-degrading enzymes produced by Bjerkandera adusta, such as versatile peroxidase, has also shown in studies to be able to decolorize synthetic melanin. This feature may allow Bjerkandera adusta to be utilized for melanin decolorization in future cosmetic applications. [9]


Bjerkandera adusta
 Pores on hymenium
 No distinct cap
 Hymenium attachment is irregular or not applicable
 Lacks a stipe
Spore print is white
 Ecology is saprotrophic
 Edibility is inedible
  1. ^ Karsten, P. (1879). "Symbolae ad mycologiam Fennicam. VI". Meddelanden Af Societas Pro Fauna et Flora Fennica (in Latin). 5: 15–46.
  2. ^ Ostry, M.E.; O'Brien, J.G.; Anderson, N.A. (2011). Field Guide to Common Macrofungi in Eastern Forests and Their Ecosystem Functions. Government Printing Office. p. 31. ISBN 978-0-16-088611-9.
  3. ^ von Willdenow CL. (1787). Florae Berolinensis Prodromus (in Latin). p. 392.
  4. ^ Ruiz-Dueñas, Francisco J.; Lundell, Taina; Floudas, Dimitrios; Nagy, Laszlo G.; Barrasa, José M.; Hibbett, David S.; Martínez, Angel T. (2013). "Lignin-degrading peroxidases in Polyporales: an evolutionary survey based on 10 sequenced genomes". Mycologia. 105 (6): 1428–1444. doi:10.3852/13-059. hdl:10261/96105. PMID 23921235. S2CID 14165783.
  5. ^ Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 317. ISBN 978-1-55407-651-2.
  6. ^ a b c Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 256. ISBN 978-0-88192-935-5.
  7. ^ Singh, R.; Eltis, L.D. (2015). "The multihued palette of dye-decolorizing peroxidases". Archives of Biochemistry and Biophysics. 574: 56–65. doi:10.1016/ PMID 25743546.
  8. ^ Kadri, Tayssir; Rouissi, Tarek; Kaur Brar, Satinder; Cledon, Maximiliano; Sarma, Saurabhjyoti; Verma, Mausam (2017). "Biodegradation of polycyclic aromatic hydrocarbons (PAHs) by fungal enzymes: A review" (PDF). Journal of Environmental Sciences. 51: 52–74. doi:10.1016/j.jes.2016.08.023. PMID 28115152.
  9. ^ Baik, Jina; Purkayastha, Anwesha; Park, Kyung Hye; Kang, Taek Jin (Sep 2021). "Functional Characterization of Melanin Decolorizing Extracellular Peroxidase of Bjerkandera adusta". Journal of Fungi. 7 (9): 10. doi:10.3390/jof7090762. PMC 8466778. PMID 34575800.