Fungal community structure and seasonal trajectories respond similarly to fire across pyrophilic ecosystems.

Autor:	Hopkins JR; University of Kansas, Ecology & Evolutionary Biology, 1200 Sunnyside Avenue, 2041 Haworth Hall, Lawrence, KS 66045, USA.; University of Kansas, Kansas Biological Survey, 2101 Constant Avenue, Takeru Higuchi Hall, Lawrence, KS 66047, USA., Semenova-Nelsen T; University of Kansas, Kansas Biological Survey, 2101 Constant Avenue, Takeru Higuchi Hall, Lawrence, KS 66047, USA., Sikes BA; University of Kansas, Ecology & Evolutionary Biology, 1200 Sunnyside Avenue, 2041 Haworth Hall, Lawrence, KS 66045, USA.; University of Kansas, Kansas Biological Survey, 2101 Constant Avenue, Takeru Higuchi Hall, Lawrence, KS 66047, USA.
Jazyk:	angličtina
Zdroj:	FEMS microbiology ecology [FEMS Microbiol Ecol] 2020 Dec 29; Vol. 97 (1).
DOI:	10.1093/femsec/fiaa219
Abstrakt:	Fire alters microbial community composition, and is expected to increase in frequency due to climate change. Testing whether microbes in different ecosystems will respond similarly to increased fire disturbance is difficult though, because fires are often unpredictable and hard to manage. Fire recurrent or pyrophilic ecosystems, however, may be useful models for testing the effects of frequent disturbance on microbes. We hypothesized that across pyrophilic ecosystems, fire would drive similar alterations to fungal communities, including altering seasonal community dynamics. We tested fire's effects on fungal communities in two pyrophilic ecosystems, a longleaf pine savanna and tallgrass prairie. Fire caused similar fungal community shifts, including (i) driving immediate changes that favored taxa able to survive fire and take advantage of post-fire environments and (ii) altering seasonal trajectories due to fire-associated changes to soil nutrient availability. This suggests that fire has predictable effects on fungal community structure and intra-annual community dynamics in pyrophilic ecosystems, and that these changes could significantly alter fungal function. Parallel fire responses in these key microbes may also suggest that recurrent fires drive convergent changes across ecosystems, including less fire-frequented systems that may start burning more often due to climate change. (© The Author(s) 2020. Published by Oxford University Press on behalf of FEMS.)
Databáze:	MEDLINE
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