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Aquatic Microbial Ecology

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AME 86:191-207 (2021)  -  DOI:

Fungal communities of submerged fine detritus from temperate peatland and stream habitats

Daniel B. Raudabaugh1,2,*, Elizabeth M. Bach3, Julie M. Allen4, Andrew N. Miller2

1Department of Plant Biology, University of Illinois Urbana-Champaign, Champaign, Illinois 61801, USA
2Illinois Natural History Survey, University of Illinois Urbana-Champaign, Champaign, Illinois 61820, USA
3The Nature Conservancy, Nachusa Grasslands, Franklin Grove, Illinois 61031, USA
4Department of Biology, University of Nevada, Reno, Nevada 89557, USA
*Corresponding author:

ABSTRACT: Fungi are essential in aquatic ecosystems, transforming organic matter into energy sources that support higher trophic levels. However, researchers do not yet know the extent of fungal diversity and species distribution within these important ecosystems. Therefore, we examined the detrital fungal communities from contrasting aquatic habitats (temperate peatlands and streams) to provide an in-depth inventory and greater understanding of how these communities differ. Fine submerged detritus or substrate on or beneath the stream bed were collected from 6 sites. Fungal cultures were isolated from samples collected in May, July/August, and November from 2 sites in 2014 and 4 sites in 2016. Culture-independent analyses were conducted on 42 environmental samples collected in November 2016. Results indicated that peatland and stream fungal communities were taxonomically diverse, phylogenetically distinct, and harbored many unknown taxa from the kingdom Fungi. Specifically, stream habitats were more species-rich, in both number of species and phylogenetic diversity, compared to peatland habitats. In addition, fungal species and phylogenetic distribution within most major fungal classes were distinct between peatland and stream fungal communities. In light of global climate change, habitat loss, and water pollution, it has become increasingly important to examine these understudied and essential fungal communities within these ecosystems.

KEY WORDS: Ascomycota · Basidiomycota · Bogs · Chytridiomycota · Mortierellomycota

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Cite this article as: Raudabaugh DB, Bach EM, Allen JM, Miller AN (2021) Fungal communities of submerged fine detritus from temperate peatland and stream habitats. Aquat Microb Ecol 86:191-207.

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