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    Microbial community composition in sediments resists perturbation by nutrient enrichment

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    Bowen et al. microbial resistance w figs.pdf (311.7Kb)
    Date
    2010-11
    Author
    Bowen, Jennifer L.  Concept link
    Ward, Bess B.  Concept link
    Morrison, Hilary G.  Concept link
    Hobbie, John E.  Concept link
    Valiela, Ivan  Concept link
    Deegan, Linda A.  Concept link
    Sogin, Mitchell L.  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/4909
    As published
    https://doi.org/10.1038/ismej.2011.22
    Abstract
    Functional redundancy in bacterial communities is expected to allow microbial assemblages to survive perturbation by allowing continuity in function despite compositional changes in communities. Recent evidence suggests, however, that microbial communities change both composition and function as a result of disturbance. We present evidence for a third response: resistance. We examined microbial community response to perturbation caused by nutrient enrichment in salt marsh sediments using deep pyrosequencing of 16S rRNA and functional gene microarrays targeting the nirS gene. Composition of the microbial community, as demonstrated by both genes, was unaffected by significant variations in external nutrient supply, despite demonstrable and diverse nutrient–induced changes in many aspects of marsh ecology. The lack of response to external forcing demonstrates a remarkable uncoupling between microbial composition and ecosystem-level biogeochemical processes and suggests that sediment microbial communities are able to resist some forms of perturbation.
    Description
    Author Posting. © The Author(s), 2010. This is the author's version of the work. It is posted here by permission of Nature Publishing Group for personal use, not for redistribution. The definitive version was published in The ISME Journal 5 (2011): 1540–1548, doi:10.1038/ismej.2011.22.
    Collections
    • Josephine Bay Paul Center in Comparative Molecular Biology and Evolution
    • Ecosystems Center
    Suggested Citation
    Preprint: Bowen, Jennifer L., Ward, Bess B., Morrison, Hilary G., Hobbie, John E., Valiela, Ivan, Deegan, Linda A., Sogin, Mitchell L., "Microbial community composition in sediments resists perturbation by nutrient enrichment", 2010-11, https://doi.org/10.1038/ismej.2011.22, https://hdl.handle.net/1912/4909
     
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