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Fungi from geothermal soils in Yellowstone National Park

Applied and Environmental Microbiology

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Abstract

Geothermal soils near Amphitheater Springs in Yellowstone National Park were characterized by high temperatures (up to 70??C), high heavy metal content, low pH values (down to pH 2.7), sparse vegetation, and limited organic carbon. From these soils we cultured 16 fungal species. Two of these species were thermophilic, and six were thermotolerant. We cultured only three of these species from nearby cool (0 to 22??C) soils. Transect studies revealed that higher numbers of CFUs occurred in and below the root zone of the perennial plant Dichanthelium lanuginosum (hot springs panic grass). The dynamics of fungal CFUs in geothermal soil and nearby nongeothermal soil were investigated for 12 months by examining soil cores and in situ mesocosms. For all of the fungal species studied, the temperature of the soil from which the organisms were cultured corresponded with their optimum axenic growth temperature.

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Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Fungi from geothermal soils in Yellowstone National Park
Series title:
Applied and Environmental Microbiology
Volume:
65
Issue:
12
Year Published:
1999
Language:
English
Publisher:
Argo Botanical Publishers
Contributing office(s):
Western Fisheries Research Center
Description:
5 p.
First page:
5193
Last page:
5197
Country:
United States
State:
Wyoming
Other Geospatial:
Yellowstone National Park