Document


Title

The postfire discomycete Geopyxis carbonaria (Ascomycota) is a biotrophic root associate with Norway spruce (Picea abies) in nature
Document Type: Journal Article
Author(s): T. Vralstad; A. Holst-Jensen; T. Schumacher
Publication Year: 1998

Cataloging Information

Keyword(s):
  • Abies spp.
  • adaptation
  • age classes
  • coniferous forests
  • crown fires
  • disturbance
  • disturbance
  • Europe
  • fire injuries (plants)
  • fire intensity
  • forest management
  • fungi
  • genetics
  • ground fires
  • heat
  • life history
  • molecular identification
  • mortality
  • mycorrhiza
  • mycorrhiza
  • Norway
  • Pezizales
  • Picea
  • Picea abies
  • plant physiology
  • post fire recovery
  • roots
  • species-specific DNA
  • surface fires
  • trees
  • wildfires
  • wind
Region(s):
  • International
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 44866
Tall Timbers Record Number: 20300
TTRS Location Status: In-file
TTRS Call Number: Fire File
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

The hypothesis that the postfire discomycete Geopyxis carbonaria (Ascomycota, Pezizales, Pyronemataceae) has a biotrophic association with roots of Norway spruce (Picea abies) in nature was tested by isolation of fungal strains from fresh, brown, smooth mycorrhiza-like root tips of Norway spruce collected from below the depth of detrimental heat penetration in a postfire site. The morphology of seven culture isolates originating from the smooth mycorrhiza-like root tips of two different spruce trees was congruent with the morphology of axenic culture isolates obtained from ascospores of G. carbonaria. DNA sequences of the nuclear ribosomal internal transcribed spacers ITS1 and ITS2 from these root-derived cultures and the ascosporic G. carbonaria culture isolates were found to be identical, further supporting the conclusion that the isolates were conspecific. The extensive ascocarp and ascospore formation of G. carbonaria which succeeds a forest fire may be explained in terms of a fungal escape from a moribund tree associate. Possible ecological adaptations of G. carbonaria to the pre- and postfire community are discussed. © 1998 Blackwell Science Ltd.

Citation:
Vralstad, T., A. Holst-Jensen, and T. Schumacher. 1998. The postfire discomycete Geopyxis carbonaria (Ascomycota) is a biotrophic root associate with Norway spruce (Picea abies) in nature. Molecular Ecology, v. 7, no. 5, p. 609-616. 10.1046/j.1365-294x.1998.00365.x.