Metuloidea murashkinskyi

Metuloidea murashkinskyi is a species of tooth fungus in the family Steccherinaceae. It is found in Europe and Asia, where it causes a white rot on the wood of deciduous trees.

Metuloidea murashkinskyi
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Polyporales
Family:
Steccherinaceae
Genus:
Metuloidea
Species:
M. murashkinskyi
Binomial name
Metuloidea murashkinskyi
(Burt) Miettinen & Spirin (2016)
Synonyms[1]
  • Hydnum murashkinskyi Burt (1931)
  • Mycoleptodon murashkinskyi (Burt) Pilát (1934)
  • Steccherinum murashkinskyi (Burt) Maas Geest. (1962)
  • Irpex murashkinskyi (Burt) Kotir. & Saaren. (2002)

Taxonomy

The fungus was first described in 1931 by American mycologist Edward Angus Burt as Hydnum murashkinskyi. He named it after professor K.E. Murashkinsky of the Siberian Agricultural Academy, who collected the type specimens in 1928 and sent them to Burt for identification.[2] The species was later transferred to the genera Mycoleptodon by Albert Pilát in 1934,[3] Steccherinum by Rudolph Arnold Maas Geesteranus in 1962,[4] and Irpex by Heikki Kotiranda & Reima Saarenoksa in 2002.[5] Miettinen & Spirin transferred it to the newly-circumscribed genus Metuloidea in 2016.[6]

Description

The fruit bodies of Metuloidea murashkinskyi are somewhat cap-like but adhere firmly to the substrate without a stipe, and measure 5–14 cm (2.0–5.5 in) by 10–50 cm (4–20 in) by 1–5 mm thick. They have a leathery texture when fresh, but become fragile when dry. The cap surface is initially tomentose, later becoming smooth and zonate with an uneven surface and a cinnamon-brown colour. The spore-bearing surface, or hymenium, is hydnoid—that is, bearing structures resembling small conical spines measuring 0.5–5 mm long. These spines are packed together quite densely, about 4 to 6 per millimetre, and have a smoke-brown colour. In some instances, the spines fuse together to form irregular pores numbering 4–5 per millimetre. Fruit bodies have a distinctive spicy odour that lingers even in dried herbarium specimens.[7] This odour is characteristic of the genus Metuloidea.[6]

Metuloidea murashkinskyi has a dimitic hyphal structure with thick-walled sclerified generative hyphae that are 5–7 μm. The spores are shaped like short cylinders, and typically measure 3.6–4.5 by 2.8–2.3 μm.[7]

Habitat and distribution

Metuloidea murashkinskyi is a white rot fungus that feeds on the dead wood of deciduous trees. It is known to occur in the Russian Far East,[7] Slovakia,[8] China,[9] and Korea.[10]

Research

A 2016 study reported that Metuloidea murashkinskyi has a strong ability to grow on oil-contaminated substrates, particularly oil-aliphatic hydrocarbons, and may have potential as a bioremediant of oil-contaminated peat soil.[11]

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References
  1. "GSD Species Synonymy: Metuloidea murashkinskyi (Burt) Miettinen & Spirin". Species Fungorum. Kew Mycology. Retrieved 2017-06-14.
  2. Burt, E.A. (1931). "Hymenomycetous fungi of Siberia and Eastern Asia–mostly of wood-destroying species". Annals of the Missouri Botanical Garden. 18 (3): 469–487. JSTOR 2394033.
  3. Pilát, A. (1933). "Additamenta ad floram Sibiriae Asiaeque orientalis mycologicam". Bulletin de la Société Mycologique de France. 49: 256–339.
  4. Maas Geesteranus, R.A. (1962). "Hyphal structures in Hydnum". Persoonia. 2 (3): 377–405.
  5. Kotiranta, H.; Saarenoksa, R. (2002). "New combinations in Irpex (Aphyllophorales, Basidiomycetes)". Polish Botanical Journal. 47 (2): 103–107.
  6. Miettinen, Otto; Ryvarden, Leif (2016). "Polypore genera Antella, Austeria, Butyrea, Citripora, Metuloidea and Trulla (Steccherinaceae, Polyporales)". Annales Botanici Fennici. 53 (3–4): 157–172. doi:10.5735/085.053.0403.
  7. Spirin, Wjacheslav; Zmitrovich, Ivan; Malysheva, Vera (2007). "Steccherinum tenuispinum (Polyporales, Basidiomycota), a new species from Russia, and notes on three other species" (PDF). Annales Botanici Fennici. 44: 298–302.
  8. Adamčík, Slavomír; Christensen, Morten; Heilmann-Clausen, Jacob; Walleyn, Ruben (2007). "Fungal diversity in the Poloniny National Park with emphasis on indicator species of conservation value of beech forests in Europe" (PDF). 59 (1): 67–81. doi:10.33585/cmy.59107. Cite journal requires |journal= (help)
  9. Wan, Xian-Shen; Yuan, Hai-Shen (2013). "Hydnaceous fungi of China 5. Steccherinum (Basidiomycota, Meruliaceae) in China". Mycosystema. 32 (6): 1086–1096.
  10. Lee, Jin Sung; Jung, Hack Sung; Lim, Young Wood (2008). "Checklist of decay fungi associated with oak trees in Korea" (PDF). Korean Journal of Mycology. 36 (2): 101–115. doi:10.4489/kjm.2008.36.2.101.
  11. Kulikova, N.A.; Klein, O.I.; Pivchenko, D.V.; Landesman, E.O.; Pozdnyakova, N.N.; Turkovskaya, O.V.; Zaichik, B.Ts.; Ruzhitskii, A.O.; Koroleva, O.V. (2016). "Oil degradation by basidiomycetes in soil and peat at low temperatures". Applied Biochemistry and Microbiology. 52 (6): 629–637. doi:10.1134/S0003683816060119.
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