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Diversity of Growth Responses of Soil Saprobic Fungi to Recurring Heat Events

As a consequence of ongoing climate change, the frequency of extreme heat events is expected to increase. Recurring heat pulses may disrupt functions supported by soil microorganisms, thus affecting the entire ecosystem. However, most perturbation experiments only test effects of single heat events,...

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Autores principales: Szymczak, Aleksandra, Ryo, Masahiro, Roy, Julien, Rillig, Matthias C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7316893/
https://www.ncbi.nlm.nih.gov/pubmed/32636822
http://dx.doi.org/10.3389/fmicb.2020.01326
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author Szymczak, Aleksandra
Ryo, Masahiro
Roy, Julien
Rillig, Matthias C.
author_facet Szymczak, Aleksandra
Ryo, Masahiro
Roy, Julien
Rillig, Matthias C.
author_sort Szymczak, Aleksandra
collection PubMed
description As a consequence of ongoing climate change, the frequency of extreme heat events is expected to increase. Recurring heat pulses may disrupt functions supported by soil microorganisms, thus affecting the entire ecosystem. However, most perturbation experiments only test effects of single heat events, and therefore it remains largely unknown how soil microorganisms react to repeated pulse events. Here we present data from a lab experiment exposing 32 filamentous fungi, originally isolated from the same soil, to sequential heat perturbations. Soil saprobic fungi isolates were exposed to one or two heat pulses: mild (35°C/2 h), strong (45°C/1 h), or both in sequence (35°C/2 h+45°C/1 h), and we assessed growth rate. Out of the 32 isolates 13 isolates showed an antagonistic response, 3 isolates a synergistic response and 16 isolates responded in an additive manner. Thus the 32 filamentous fungal isolates used here showed the full range of possible responses to an identical heat perturbation sequence. This diversity of responses could have consequences for soil-borne ecosystem services, highlighting the potential importance of fungal biodiversity in maintaining such services, particularly in the context of climate change.
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spelling pubmed-73168932020-07-06 Diversity of Growth Responses of Soil Saprobic Fungi to Recurring Heat Events Szymczak, Aleksandra Ryo, Masahiro Roy, Julien Rillig, Matthias C. Front Microbiol Microbiology As a consequence of ongoing climate change, the frequency of extreme heat events is expected to increase. Recurring heat pulses may disrupt functions supported by soil microorganisms, thus affecting the entire ecosystem. However, most perturbation experiments only test effects of single heat events, and therefore it remains largely unknown how soil microorganisms react to repeated pulse events. Here we present data from a lab experiment exposing 32 filamentous fungi, originally isolated from the same soil, to sequential heat perturbations. Soil saprobic fungi isolates were exposed to one or two heat pulses: mild (35°C/2 h), strong (45°C/1 h), or both in sequence (35°C/2 h+45°C/1 h), and we assessed growth rate. Out of the 32 isolates 13 isolates showed an antagonistic response, 3 isolates a synergistic response and 16 isolates responded in an additive manner. Thus the 32 filamentous fungal isolates used here showed the full range of possible responses to an identical heat perturbation sequence. This diversity of responses could have consequences for soil-borne ecosystem services, highlighting the potential importance of fungal biodiversity in maintaining such services, particularly in the context of climate change. Frontiers Media S.A. 2020-06-19 /pmc/articles/PMC7316893/ /pubmed/32636822 http://dx.doi.org/10.3389/fmicb.2020.01326 Text en Copyright © 2020 Szymczak, Ryo, Roy and Rillig. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Szymczak, Aleksandra
Ryo, Masahiro
Roy, Julien
Rillig, Matthias C.
Diversity of Growth Responses of Soil Saprobic Fungi to Recurring Heat Events
title Diversity of Growth Responses of Soil Saprobic Fungi to Recurring Heat Events
title_full Diversity of Growth Responses of Soil Saprobic Fungi to Recurring Heat Events
title_fullStr Diversity of Growth Responses of Soil Saprobic Fungi to Recurring Heat Events
title_full_unstemmed Diversity of Growth Responses of Soil Saprobic Fungi to Recurring Heat Events
title_short Diversity of Growth Responses of Soil Saprobic Fungi to Recurring Heat Events
title_sort diversity of growth responses of soil saprobic fungi to recurring heat events
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7316893/
https://www.ncbi.nlm.nih.gov/pubmed/32636822
http://dx.doi.org/10.3389/fmicb.2020.01326
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