Does warming by open-top chambers induce change in the root-associated fungal community of the arctic dwarf shrub Cassiope tetragona (Ericaceae)?
| Autor: | Sunil Mundra, Jelte Rozema, Kelsey Erin Lorberau, Anders Bjørnsgaard Aas, Pernille Bronken Eidesen, Håvard Kauserud, Synnøve Smebye Botnen |
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| Přispěvatelé: | Systems Ecology |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Climate Change OTCs Plant Science Plant Roots Mycena Cassiope tetragona Ericoid mycorrhiza Svalbard 03 medical and health sciences Arctic Mycorrhizae Clavaria Botany SDG 13 - Climate Action Genetics Climate change DNA Barcoding Taxonomic DNA Fungal Molecular Biology Ecology Evolution Behavior and Systematics High-throughput sequencing Open-top chambers biology Arctic Regions Ecology Temperature Sebacinales General Medicine biology.organism_classification Ectomycorrhiza 030104 developmental biology Root-associated fungi Cortinarius Ericaceae |
| Zdroj: | Lorberau, K E, Botnen, S S, Mundra, S, Aas, A B, Rozema, J, Eidesen, P B & Kauserud, H 2017, ' Does warming by open-top chambers induce change in the root-associated fungal community of the arctic dwarf shrub Cassiope tetragona (Ericaceae)? ', Mycorrhiza, vol. 27, no. 5, pp. 513-524 . https://doi.org/10.1007/s00572-017-0767-y Mycorrhiza, 27(5), 513-524. Springer Verlag |
| ISSN: | 1432-1890 0940-6360 |
| DOI: | 10.1007/s00572-017-0767-y |
| Popis: | Climate change may alter mycorrhizal communities, which impact ecosystem characteristics such as carbon sequestration processes. These impacts occur at a greater magnitude in Arctic ecosystems, where the climate is warming faster than in lower latitudes. Cassiope tetragona (L.) D. Don is an Arctic plant species in the Ericaceae family with a circumpolar range. C. tetragona has been reported to form ericoid mycorrhizal (ErM) as well as ectomycorrhizal (ECM) symbioses. In this study, the fungal taxa present within roots of C. tetragona plants collected from Svalbard were investigated using DNA metabarcoding. In light of ongoing climate change in the Arctic, the effects of artificial warming by open-top chambers (OTCs) on the fungal root community of C. tetragona were evaluated. We detected only a weak effect of warming by OTCs on the root-associated fungal communities that was masked by the spatial variation between sampling sites. The root fungal community of C. tetragona was dominated by fungal groups in the Basidiomycota traditionally classified as either saprotrophic or ECM symbionts, including the orders Sebacinales and Agaricales and the genera Clavaria, Cortinarius, and Mycena. Only a minor proportion of the operational taxonomic units (OTUs) could be annotated as ErM-forming fungi. This indicates that C. tetragona may be forming mycorrhizal symbioses with typically ECM-forming fungi, although no characteristic ECM root tips were observed. Previous studies have indicated that some saprophytic fungi may also be involved in biotrophic associations, but whether the saprotrophic fungi in the roots of C. tetragona are involved in biotrophic associations remains unclear. The need for more experimental and microscopy-based studies to reveal the nature of the fungal associations in C. tetragona roots is emphasized. |
| Databáze: | OpenAIRE |
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