Journal
MYCOLOGIA
Volume 103, Issue 6, Pages 1161-1174Publisher
TAYLOR & FRANCIS INC
DOI: 10.3852/11-108
Keywords
dry valleys; glaciers; microbial mats; plant trichomes; salt flats; salterns
Categories
Funding
- Mycological Society of America
- National Science Foundation (NSF) [MCB 0718500]
- CNN-Brasil
- Dianese research
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Fungi are found in all aerobic ecosystems, colonizing a diversity of substrates and performing a wide diversity of functions, some of which are not well understood. Many species of fungi are cosmopolitan and generalists but others are specialists found only in restricted substrates or habitats. Unusual fungal niches are habitats where extreme conditions would be expected to prevent the development of a mycobiota. In this review we describe five unusual fungal habitats in which fungi occupy poorly understood niches: Antarctic dry valleys, high Arctic glaciers, salt flats and salterns, hypersaline microbial mats and plant trichomes. Yeasts, black yeast-like fungi, melanized filamentous species as well as representatives of Aspergillus and Penicillium seem to be dominant among the mycobiota adapted to cold and saline niches. Plant trichomes appear to be a unique niche, harboring many previously unknown taxa. The advent of new sequencing technologies is helping to elucidate the microbial diversity in many ecosystems, but more studies are needed to document the functional role of fungi in the microbial communities thriving in these unusual environments.
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