A positive feedback to climate change: The effect of temperature on the respiration of key wood-decomposing fungi does not decline with time.
CO2
basidiomycetes
carbon cycle feedbacks
climate change
fungi
respiration
respiratory thermal response
temperature
wood decomposition
Journal
Global change biology
ISSN: 1365-2486
Titre abrégé: Glob Chang Biol
Pays: England
ID NLM: 9888746
Informations de publication
Date de publication:
Mar 2024
Mar 2024
Historique:
revised:
21
01
2024
received:
26
08
2023
accepted:
05
02
2024
medline:
7
3
2024
pubmed:
7
3
2024
entrez:
7
3
2024
Statut:
ppublish
Résumé
Heterotrophic soil microorganisms are responsible for ~50% of the carbon dioxide released by respiration from the terrestrial biosphere each year. The respiratory response of soil microbial communities to warming, and the control mechanisms, remains uncertain, yet is critical to understanding the future land carbon (C)-climate feedback. Individuals of nine species of fungi decomposing wood were exposed to 90 days of cooling to evaluate the medium-term effect of temperature on respiration. Overall, the effect of temperature on respiration increased in the medium term, with no evidence of compensation. However, the increasing effect of temperature on respiration was lost after correcting for changes in biomass. These results indicate that C loss through respiration of wood-decomposing fungi will increase beyond the direct effects of temperature on respiration, potentially promoting greater C losses from terrestrial ecosystems and a positive feedback to climate change.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e17212Subventions
Organisme : Natural Environment Research Council
ID : NE/L002434/1
Informations de copyright
© 2024 The Authors. Global Change Biology published by John Wiley & Sons Ltd.
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