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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