Biology:Pyrenidium

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Short description: Genus of lichens

Pyrenidium
Scientific classification e
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Dothideomycetes
Order: Pleosporales
Family: Pyrenidiaceae
Zahlbr. (1898)
Genus: Pyrenidium
Nyl. (1865)
Type species
Pyrenidium actinellum
Nyl. (1865)
Synonyms[1]
  • Dacampiosphaeria D.Hawksw. (1980)
  • Pyrenidiomyces Cif. & Tomas. (1953)

Pyrenidium is a genus of lichenicolous (lichen-dwelling) fungi. It is the only genus in the family Pyrenidiaceae.[2] It has 13 species.

Taxonomy

The genus was circumscribed by Finnish lichenologist William Nylander in 1865, with Pyrenidium actinellum assigned as the type species.[3] The family was originally proposed by Alexander Zahlbruckner in 1898, and later resurrected for use in 2019. Pyrenidium was previously classified in Dacampiaceae, but molecular phylogenetic analysis showed that this family was polyphyletic, and that Pyrenidium originated from a lineage distinct from the genera in that family.[4]

Description

Members of the genus have ascomata that are perithecioid in form, often with blue-green pigment in the upper wall of the peridia. Their ascomata are either immersed in the host thallus, or bursting through surface (erumpent), exposing the upper part of the structure (sometimes still covered by tissue of the host thalli). They have bitunicate asci that contain from four to eight ascospores. Infection by the fungus sometimes causes gall-like malformations of the host thallus.[4]

Species

(As of September 2022), Species Fungorum (in the Catalogue of Life) accepts 13 species of Pyrenidium:[5]

  • Pyrenidium actinellum Nyl. (1865)[3]
  • Pyrenidium aggregatum Knudsen & Kocourk. (2010)[6]
  • Pyrenidium borbonicum Huanraluek, Ertz & K.D.Hyde (2019)[4]
  • Pyrenidium coccineum Aptroot (2014)[7]
  • Pyrenidium cryptotheciae Matzer (1996)[8]
  • Pyrenidium hetairizans (Leight.) D.Hawksw. (1986)[9]
  • Pyrenidium hypotrachynae Y.Joshi (2018)[10]
  • Pyrenidium macrosporum Motiej., Zhurb., Suija & Kantvilas (2018)[11]
  • Pyrenidium octosporum Looman (1963)
  • Pyrenidium santessonii Lücking (1998)[12]
  • Pyrenidium sporopodiorum Matzer (1996)[8]
  • Pyrenidium ucrainicum S.Y.Kondr., Lőkös & Hur (2014)[13]
  • Pyrenidium zamiae (Müll.Arg.) Matzer (1996)

References

  1. "Synonymy. Current Name: Pyrenidium Nyl., Flora, Regensburg 48: 210 (1865)". Species Fungorum. http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=4578. 
  2. Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K. et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere 13 (1): 53–453. doi:10.5943/mycosphere/13/1/2. https://www.researchgate.net/publication/358798332. 
  3. 3.0 3.1 Nylander, W. (1865). "Novitatiae quaedum lichenum europaeorum variarum tribuum" (in la). Flora (Regensburg) 48: 209–213. https://www.biodiversitylibrary.org/page/56319. 
  4. 4.0 4.1 4.2 Huanraluek, N. (2019). "The family Pyrenidiaceae resurrected". Mycosphere 10 (1): 634–654. doi:10.5943/mycosphere/10/1/13. 
  5. Source dataset. Species Fungorum Plus: Species Fungorum for CoL+. "Pyrenidium". Catalog of Life version: Annual Checklist 2022. https://www.catalogueoflife.org/data/taxon/75YQ. 
  6. Knudsen, K.; Kocourková, J. (2010). "Pyrenidium aggregatum, a new species from North America". Opuscula Philolichenum 8: 71–74. 
  7. Aptroot, André (2014). "Two new genera of Arthoniales from New Caledonia and the Solomon Islands, with the description of eight further species". The Bryologist 117 (3): 282–289. doi:10.1639/0007-2745-117.3.282. 
  8. 8.0 8.1 Matzer, M. (1996). Lichenicolous ascomycetes with fissitunicate asci on foliicolus lichens. Mycological Papers. 171. p. 149. 
  9. Hawksworth, D.L. (1986). "Notes on British lichenicolous fungi: V". Notes from the Royal Botanical Garden Edinburgh 43: 497–519. 
  10. Joshi, Y.; Tripathi, M.; Bisht, K.; Upadhyay, S.; Kumar, V.; Pal, N.; Gaira, A.; Pant, S. et al. (2018). "Further contributions to the documentation of lichenicolous fungi from India". Kavaka 50: 26–33. 
  11. Motiejūnaitė, Jurga; Zhurbenko, Mikhail P.; Suija, Ave; Kantvilas, Gintaras (2018). "Lichenicolous ascomycetes on Siphula-like lichens, with a key to the species". The Lichenologist 51 (1): 45–73. doi:10.1017/S0024282918000579. 
  12. Lücking, R. (1998). "Foliicolous lichens and their lichenicolous fungi collected during the "Smithsonian International Cryptogamic Expedition 1996" to Guyana". Tropical Bryology 15: 45–76. 
  13. Kondratyuk, S.; Lőkös, L.; Hur, J.-S. (2014). "New lichen-forming and lichenicolous fungi from Ukraine". Acta Botanica Hungarica 56 (3–4): 361–368. doi:10.1556/ABot.56.2014.3-4.11. https://www.researchgate.net/publication/277924001. 

Wikidata ☰ Q10647248 entry