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Title: The Sphagnum microbiome: New insights from an ancient plant lineage

Abstract

Here, peat mosses of the genus Sphagnum play a major role in global carbon storage and dominate many northern peatland ecosystems, which are currently being subjected to some of the most rapid climate changes on Earth. A rapidly expanding database indicates that a diverse community of microorganisms is intimately associated with Sphagnum, inhabiting the tissues and surface of the plant. Here we summarize the current state of knowledge regarding the Sphagnum microbiome and provide a perspective for future research directions. Although the majority of the microbiome remains uncultivated and its metabolic capabilities uncharacterized, prokaryotes and fungi have the potential to act as mutualists, symbionts, or antagonists of Sphagnum. For example, methanotrophic and nitrogen-fixing bacteria may benefit the plant host by providing up to 20–30% of Sphagnum carbon and nitrogen, respectively. Next-generation sequencing approaches have enabled the detailed characterization of microbiome community composition in peat mosses. However, as with other ecologically or economically important plants, our knowledge of Sphagnum–microbiome associations is in its infancy. In order to attain a predictive understanding of the role of the microbiome in Sphagnum productivity and ecosystem function, the mechanisms of plant–microbiome interactions and the metabolic potential of constituent microbial populations must be revealed.

Authors:
 [1];  [2];  [1];  [3];  [4];  [5]
  1. Georgia Inst. of Technology, Atlanta, GA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. USDA Forest Service, Houghton, MI (United States)
  4. Duke Univ., Durham, NC (United States)
  5. Univ. of Guelph, Guelph, ON (Canada)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC)
OSTI Identifier:
1356904
Alternate Identifier(s):
OSTI ID: 1379980
Grant/Contract Number:  
AC05-00OR22725; SC0012088; # DE-SC0012088
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
New Phytologist
Additional Journal Information:
Journal Volume: 211; Journal Issue: 1; Journal ID: ISSN 0028-646X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; 60 APPLIED LIFE SCIENCES; bacteria; fungi; methanotroph; microbiome; nitrogen fixation; peatland; plant growth promotion; Sphagnum

Citation Formats

Kostka, Joel E., Weston, David J., Glass, Jennifer B., Lilleskov, Erik A., Shaw, A. Jonathan, and Turetsky, Merritt R. The Sphagnum microbiome: New insights from an ancient plant lineage. United States: N. p., 2016. Web. doi:10.1111/nph.13993.
Kostka, Joel E., Weston, David J., Glass, Jennifer B., Lilleskov, Erik A., Shaw, A. Jonathan, & Turetsky, Merritt R. The Sphagnum microbiome: New insights from an ancient plant lineage. United States. doi:10.1111/nph.13993.
Kostka, Joel E., Weston, David J., Glass, Jennifer B., Lilleskov, Erik A., Shaw, A. Jonathan, and Turetsky, Merritt R. Fri . "The Sphagnum microbiome: New insights from an ancient plant lineage". United States. doi:10.1111/nph.13993. https://www.osti.gov/servlets/purl/1356904.
@article{osti_1356904,
title = {The Sphagnum microbiome: New insights from an ancient plant lineage},
author = {Kostka, Joel E. and Weston, David J. and Glass, Jennifer B. and Lilleskov, Erik A. and Shaw, A. Jonathan and Turetsky, Merritt R.},
abstractNote = {Here, peat mosses of the genus Sphagnum play a major role in global carbon storage and dominate many northern peatland ecosystems, which are currently being subjected to some of the most rapid climate changes on Earth. A rapidly expanding database indicates that a diverse community of microorganisms is intimately associated with Sphagnum, inhabiting the tissues and surface of the plant. Here we summarize the current state of knowledge regarding the Sphagnum microbiome and provide a perspective for future research directions. Although the majority of the microbiome remains uncultivated and its metabolic capabilities uncharacterized, prokaryotes and fungi have the potential to act as mutualists, symbionts, or antagonists of Sphagnum. For example, methanotrophic and nitrogen-fixing bacteria may benefit the plant host by providing up to 20–30% of Sphagnum carbon and nitrogen, respectively. Next-generation sequencing approaches have enabled the detailed characterization of microbiome community composition in peat mosses. However, as with other ecologically or economically important plants, our knowledge of Sphagnum–microbiome associations is in its infancy. In order to attain a predictive understanding of the role of the microbiome in Sphagnum productivity and ecosystem function, the mechanisms of plant–microbiome interactions and the metabolic potential of constituent microbial populations must be revealed.},
doi = {10.1111/nph.13993},
journal = {New Phytologist},
issn = {0028-646X},
number = 1,
volume = 211,
place = {United States},
year = {2016},
month = {5}
}

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