Opin vísindi

Long‐term warming effects on the microbiome and <i>nifH</i> gene abundance of a common moss species in sub‐Arctic tundra

Long‐term warming effects on the microbiome and <i>nifH</i> gene abundance of a common moss species in sub‐Arctic tundra


Title: Long‐term warming effects on the microbiome and <i>nifH</i> gene abundance of a common moss species in sub‐Arctic tundra
Author: Klarenberg, Ingeborg J.   orcid.org/0000-0002-9548-9069
Keuschnig, Christoph
Russi Colmenares, Ana J.
Warshan, Denis   orcid.org/0000-0001-7329-3674
Jungblut, Anne D.
Jónsdóttir, Ingibjörg S.
Vilhelmsson, Oddur   orcid.org/0000-0001-8799-0964
Date: 2021-11
Language: English
Scope: 2044-2056
University/Institute: Háskóli Íslands
University of Iceland
School: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Department: Líf- og umhverfisvísindadeild (HÍ)
Faculty of Life and Environmental Sciences (UI)
Series: New Phytologist;234(6)
ISSN: 0028-646X
1469-8137
DOI: inhttps://doi.org/10.1111/nph.17837
Subject: Plant Science; Microbial ecology; Climate change; Moss; Microbiome; Tundra; Shrub expansion; Nitrogen fixation; Grasafræði; Plöntuvistfræði; Loftslagsbreytingar; Mosar
URI: https://hdl.handle.net/20.500.11815/4553

Show full item record

Citation:

Klarenberg, I. J., Keuschnig, C., Colmenares, A. J. R., Warshan, D., Jungblut, A. D., Jónsdóttir, I. S. & Vilhelmsson, O. (2021). Long‐term warming effects on the microbiome and nifh gene abundance of a common moss species in sub‐arctic tundra. New Phytologist, 234(6). DOI: 10.1111/nph.17837.

Abstract:

Bacterial communities form the basis of biogeochemical processes and determine plant growth and health. Mosses harbour diverse bacterial communities that are involved in nitrogen fixation and carbon cycling. Global climate change is causing changes in aboveground plant biomass and shifting species composition in the Arctic, but little is known about the response of moss microbiomes in these environments. Here, we studied the total and potentially active bacterial community associated with Racomitrium lanuginosum, in response to 20-year in situ warming in an Icelandic heathland. We evaluated the effect of warming and warming-induced shrub expansion on the moss bacterial community composition and diversity, and nifH gene abundance. Warming changed both the total and the potentially active bacterial community structure, while litter abundance only affected the total bacterial community structure. The abundance of nifH genes was negatively affected by litter abundance. We also found shifts in the potentially nitrogen-fixing community, with Nostoc decreasing and non-cyanobacterial diazotrophs increasing in relative abundance. Our data suggests that the moss microbial community and potentially nitrogen fixing taxa are sensitive to future warming, partly via changes in litter and shrub abundance.

Rights:

This is the peer reviewed version of the following article: Klarenberg, I. J., Keuschnig, C., Colmenares, A. J. R., Warshan, D., Jungblut, A. D., Jónsdóttir, I. S. & Vilhelmsson, O. (2021). Long‐term warming effects on the microbiome and nifh gene abundance of a common moss species in sub‐arctic tundra. New Phytologist, 234(6), 2044-2056, which has been published in final form at DOI: 10.1111/nph.17837. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

Files in this item

This item appears in the following Collection(s)