Succession patterns and physical niche partitioning in microbial communities from subsurface coal seams

Silas H. W. Vick*, Paul Greenfield, Kaydy L. Pinetown, Neil Sherwood, Se Gong, Sasha G. Tetu, David J. Midgley, Ian T. Paulsen

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    32 Citations (Scopus)
    39 Downloads (Pure)

    Abstract

    The subsurface represents a largely unexplored frontier in microbiology. Here, coal seams present something of an oasis for microbial life, providing moisture, warmth, and abundant fossilized organic material. Microbes in coal seams are thought to syntrophically mobilize fossilized carbon from the geosphere to the biosphere. Despite the environmental and economic importance of this process, little is known about the microbial ecology of coal seams. In the current study, ecological succession and spatial niche partitioning are explored in three coal seam microbial communities. Scanning electron microscopic visualization and 16S rRNA sequencing track changes in microbial communities over time, revealing distinct attached and planktonic communities displaying patterns of ecological succession. Attachment to the coal surface is biofilm mediated on Surat coal, whereas microbes on Sydney and Gunnedah coal show different attachment processes. This study demonstrates that coal seam microbial communities undergo spatial niche partitioning during periods of succession as microbes colonize coal environments.

    Original languageEnglish
    Pages (from-to)152-167
    Number of pages16
    JournaliScience
    Volume12
    DOIs
    Publication statusPublished - 22 Feb 2019

    Bibliographical note

    Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

    Plus 1 non-paginated highlights page and 10 non-paginated supplemental information pages.

    Keywords

    • Biogeoscience
    • Coal Geochemistry
    • Microbiology
    • Microbiome

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