Coniochaeta

Coniochaeta
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Sordariomycetes
Subclass: Sordariomycetidae
Order: Coniochaetales
Genus: Coniochaeta
Species
  • C. polymorpha
  • C. mutabilis
  • C. decumbens
  • C. discoidea
  • C. hoffmannii
  • C. canina
  • C. cateniformis
  • C. lignicola
  • C. luteorubra
  • C. luteoviridis
  • C. fasciculata
  • C. velutina

The Coniochaeta form a genus of pleomorphic yeasts of the order Coniochaetales and are pathogens of trees.[1] They can take the form of pink to brown colonies, hyphae, condiophores or sclerotia. In 2013, the Lecythophora were merged with the Coniochaeta, following suggestions by Khan et al.[2]

Ecology

The Coniochaeta have been described as typically associated with wood, water, soil,.[3][4] However, there is also growing evidence of specialised associations between each species and specific environments, and a suggestion that 4 spored and 8 spored species interact differently with their environments, some species surviving forest fires, which activate their sexual cycle.[5] Other members of the Coniochaeta, most commonly Coniochaeta polymorpha, can cause clinical infections in immunocompromised individuals (Khan et al, 2013), which has increased recent interest in the genus.

References

  1. ↑ Damm, U; Fourie, PH; Crous, PW (June 2010). "Coniochaeta (Lecythophora), Collophora gen. nov. and Phaeomoniella species associated with wood necroses of Prunus trees". Persoonia. 24: 60–80. doi:10.3767/003158510x500705. PMID 20664761.
  2. ↑ Coniochaeta polymorpha, a new species from endotracheal aspirate of a preterm neonate, and transfer of Lecythophora species to Coniochaeta. Khan Z, Gené J, Ahmad S, Cano J, Al-Sweih N, Joseph L, Chandy R, Guarro J. Antonie Van Leeuwenhoek. 2013 Aug;104(2):243-52. doi: 10.1007/s10482-013-9943-z
  3. ↑ Weber E (2002) The Lecythophora-Coniochaeta complex I. Morphological studies on Lecythophora species isolated from Picea abies. Nova Hedwigia 74:159–185
  4. ↑ Weber E, Go¨rke C, Begerow D (2002) The Lecythophora/Coniochaeta complex II. Molecular studies based on sequences of the large subunit of ribosomal DNA. Nova Hedwigia 74:187–200
  5. ↑ Coniochaeta extramundana, with a Synopsis of Other Coniochaeta Species. D. P. Mahoney and J. S. LaFavre Mycologia Vol. 73, No. 5 (Sep. - Oct., 1981), pp. 931-952
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