Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Louis J. Lamit; Karl J. Romanowicz; Lynette R. Potvin; Adam R. Rivers; Kanwar Singh; Jay T. Lennon; Susannah G. Tringe; Evan S. KaneErik A. Lilleskov
    Date: 2017
    Source: FEMS Microbiology Ecology
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: View PDF  (2.0 MB)

    Description

    Peatlands store an immense pool of soil carbon vulnerable to microbial oxidation due to drought and intentional draining. We used amplicon sequencing and quantitative PCR to (i) examine how fungi are influenced by depth in the peat profile, water table and plant functional group at the onset of a multiyear mesocosm experiment, and (ii) test if fungi are correlated with abiotic variables of peat and pore water. We hypothesized that each factor influenced fungi, but that depth would have the strongest effect early in the experiment. We found that (i) communities were strongly depth stratified; fungi were four times more abundant in the upper (10–20 cm) than the lower (30–40 cm) depth, and dominance shifted from ericoid mycorrhizal fungi to saprotrophs and endophytes with increasing depth; (ii) the influence of plant functional group was depth dependent, with Ericaceae structuring the community in the upper peat only; (iii) water table had minor influences; and (iv) communities strongly covaried with abiotic variables, including indices of peat and pore water carbon quality. Our results highlight the importance of vertical stratification to peatland fungi, and the depth dependency of plant functional group effects, which must be considered when elucidating the role of fungi in peatland carbon dynamics.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Lamit, Louis J.; Romanowicz, Karl J.; Potvin, Lynette R.; Rivers, Adam R.; Singh, Kanwar; Lennon, Jay T.; Tringe, Susannah G.; Kane, Evan S.; Lilleskov, Erik A. 2017. Patterns and drivers of fungal community depth stratification in Sphagnum peat. FEMS Microbiology Ecology. 93(7): fix082. 14 p. https://doi.org/10.1093/femsec/fix082.

    Cited

    Google Scholar

    Keywords

    Ericaceae, ericoid mycorrhiza, peat, soil depth, sedge, water table

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page