Southern Appalachian peatlands support high archaeal diversity.

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  • Author(s): Hawkins AN;Hawkins AN; Johnson KW; Bräuer SL
  • Source:
    Microbial ecology [Microb Ecol] 2014 Apr; Vol. 67 (3), pp. 587-602. Date of Electronic Publication: 2014 Jan 14.
  • Publication Type:
    Journal Article; Research Support, Non-U.S. Gov't
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Springer-Verlag Country of Publication: United States NLM ID: 7500663 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1432-184X (Electronic) Linking ISSN: 00953628 NLM ISO Abbreviation: Microb Ecol Subsets: MEDLINE
    • Publication Information:
      Original Publication: New York, Springer-Verlag.
    • Subject Terms:
      Biodiversity* ; Wetlands*; Archaea/*physiology; Archaea/classification ; Archaea/genetics ; Archaea/isolation & purification ; Gene Library ; Molecular Sequence Data ; North Carolina ; Phylogeny ; Real-Time Polymerase Chain Reaction ; Sequence Analysis, DNA
    • Abstract:
      Mid-latitude peatlands with a temperate climate are sparsely studied and as such represent a gap in the current knowledge base regarding archaeal populations present and their roles in these environments. Phylogenetic analysis of the archaeal populations among three peatlands in the Southern Appalachians reveal not only methanogenic species but also significant populations of thaumarchaeal and crenarchaeal-related organisms of the uncultured miscellaneous crenarchaeotal group (MCG) and the terrestrial group 1.1c, as well as deep-branching Euryarchaeota primarily within the Lake Dagow sediment and rice cluster V lineages. The Thaum/Crenarchaea and deep-branching Euryarchaea represented approximately 24-83% and 2-18%, respectively, of the total SSU rRNA clones retrieved in each library, and methanogens represented approximately 14-72% of the clones retrieved. Several taxa that are either rare or novel to acidic peatlands were detected including the euryarchaeal SM1K20 cluster and thaumarchaeal/crenarchaeal-related clusters 1.1a, C3, SAGMCG-1, pSL12, and AK59. All three major groups (methanogens, Thaumarchaea/Crenarchaea, and deep-branching Euryarchaea) were detected in the RNA library, suggesting at least a minimum level of maintenance activity. Compared to their northern counterparts, Southern Appalachian peatlands appear to harbor a relatively high diversity of Archaea and exhibit a high level of intra-site heterogeneity.
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    • Publication Date:
      Date Created: 20140115 Date Completed: 20141115 Latest Revision: 20211021
    • Publication Date:
      20221213
    • Accession Number:
      10.1007/s00248-013-0352-7
    • Accession Number:
      24419541