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Biodiversity of leaf litter fungi in streams along a latitudinal gradient

Seena, Sahadevan and Bärlocher, Felix and Sobral, Olímpia and Gessner, Mark O. and Dudgeon, David and McKie, Brendan G. and Chauvet, Eric and Boyero, Luz and Ferreira, Verónica and Frainer, André and Bruder, Andreas and Matthaei, Christoph D. and Fenoglio, Stefano and Sridhar, Kandikere R. and Albariño, Ricardo J. and Douglas, Michael M. and Encalada, Andrea C. and Garcia, Erica and Ghate, Sudeep D. and Giling, Darren P. and Gonçalves, Vítor and Iwata, Tomoya and Landeira-Dabarca, Andrea and McMaster, Damien and Medeiros, Adriana O. and Naggea, Josheena and Pozo, Jesús and Raposeiro, Pedro M. and Swan, Christopher M. and Tenkiano, Nathalie S.D. and Yule, Catherine M. and Graça, Manuel A.S. Biodiversity of leaf litter fungi in streams along a latitudinal gradient. (2019) Science of The Total Environment, 661. 306-315. ISSN 00489697

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Official URL: https://doi.org/10.1016/j.scitotenv.2019.01.122


Global patterns of biodiversity have emerged for soil microorganisms, plants and animals, and the extraordinary significance of microbial functions in ecosystems is also well established. Virtually unknown, however, are large- scale patterns of microbial diversity in freshwaters, although these aquatic ecosystems are hotspots of biodiversity and biogeochemical processes. Here we report on the first large-scale study of biodiversity of leaf-litter fungi in streams along a latitudinal gradient unravelled by Illumina sequencing. The study is based on fungal commu- nities colonizing standardized plant litter in 19 globally distributed stream locations between 69°N and 44°S. Fungal richness suggests a hump-shaped distribution along the latitudinal gradient. Strikingly, community com- position of fungi was more clearly related to thermal preferences than to biogeography. Our results suggest that identifying differences in key environmental drivers, such as temperature, among taxa and ecosystem types is critical to unravel the global patterns of aquatic fungal diversity.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:25 Feb 2019 11:10

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