Experimental Evidence that Fungi are Dominant Microbes in Carbon Content and Growth Response to Added Soluble Organic Carbon in Moss‐rich Tundra Soil

Abstract Global warming significantly affects Arctic tundra, including permafrost thaw and soluble C release that may differentially affect tundra microbial growth. Using laboratory experiments, we report some of the first evidence for the effects of soluble glucose‐C enrichment on tundra soil proka...

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Bibliographic Details
Published in:Journal of Eukaryotic Microbiology
Main Authors: Anderson, O. Roger, Lee, Jee Min, McGuire, Krista
Other Authors: US National Science Foundation Arctic Natural Sciences
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2015
Subjects:
Microbiology
Arctic
Global warming
permafrost
Tundra
Online Access:http://dx.doi.org/10.1111/jeu.12286
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjeu.12286
https://onlinelibrary.wiley.com/doi/pdf/10.1111/jeu.12286
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Summary:Abstract Global warming significantly affects Arctic tundra, including permafrost thaw and soluble C release that may differentially affect tundra microbial growth. Using laboratory experiments, we report some of the first evidence for the effects of soluble glucose‐C enrichment on tundra soil prokaryotes (bacteria and archaea) and fungi, with comparisons to microbial eukaryotes. Fungal increase in C‐biomass was equivalent to 10% (w/w) of the added glucose‐C, and for prokaryote biomass 2% (w/w), the latter comparable to prior published results. The C‐gain after 14 d was 1.3 mg/g soil for fungi, and ~200 μg/g for prokaryotes.

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