Titel
Global Structuring of Phylogenetic and Functional Diversity of Pelagic Fungi by Depth and Temperature
Autor*in
Sergio E. Morales
Department of Microbiology and Immunology, University of Otago
Ambarish Biswas
Department of Microbiology and Immunology, University of Otago
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Abstract
Fungal contributions to ecosystem processes are well documented for terrestrial systems yet oceans, which account for most of the Earth’s surface, have remained poorly explored with regards to organisms in this kingdom. Here, we demonstrate that, although in low relative abundance (i.e., fungal reads made up 1.4–2.9% of the metagenomes), fungi contribute to both phylogenetic and functional microbial diversity with a conserved fungal presence in global marine samples. Universally distributed taxa and functions implicate them in complex carbon and fatty acid metabolism, with depth stratification along pelagic zones. Functional differences in observed genes between epipelagic and mesopelagic waters indicate changes in UV protection, shift to carbohydrate limited diets, as well as alternative energy sources. Metagenomic data also provided evidence for a latitudinal gradient in fungal diversity linked to temperature shifts. Our results suggest that fungi contribute to multiple biogeochemical cycles in the pelagic ocean, and could be integral for ecosystem functioning through provision of key nutrients.
Stichwort
fungimetagenomesTara ocean projectbiogeographyepipelagic and mesopelagic
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
Erschienen in
Titel
Frontiers in Marine Science
Band
6
Publication
Frontiers Media SA
Erscheinungsdatum
2019
Zugänglichkeit
Rechte
Rechteangabe
© 2019 Morales, Biswas, Herndl and Baltar
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