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Community history affects the predictability of microbial ecosystem development.
Pagaling, Eulyn; Strathdee, Fiona; Spears, Bryan M; Cates, Michael E; Allen, Rosalind J; Free, Andrew.
Afiliação
  • Pagaling E; 1] Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK [2] SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
  • Strathdee F; 1] Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK [2] SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
  • Spears BM; NERC Centre for Ecology and Hydrology Edinburgh, Penicuik, Midlothian, UK.
  • Cates ME; SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
  • Allen RJ; SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
  • Free A; Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.
ISME J ; 8(1): 19-30, 2014 Jan.
Article em En | MEDLINE | ID: mdl-23985743
ABSTRACT
Microbial communities mediate crucial biogeochemical, biomedical and biotechnological processes, yet our understanding of their assembly, and our ability to control its outcome, remain poor. Existing evidence presents conflicting views on whether microbial ecosystem assembly is predictable, or inherently unpredictable. We address this issue using a well-controlled laboratory model system, in which source microbial communities colonize a pristine environment to form complex, nutrient-cycling ecosystems. When the source communities colonize a novel environment, final community composition and function (as measured by redox potential) are unpredictable, although a signature of the community's previous history is maintained. However, when the source communities are pre-conditioned to their new habitat, community development is more reproducible. This situation contrasts with some studies of communities of macro-organisms, where strong selection under novel environmental conditions leads to reproducible community structure, whereas communities under weaker selection show more variability. Our results suggest that the microbial rare biosphere may have an important role in the predictability of microbial community development, and that pre-conditioning may help to reduce unpredictability in the design of microbial communities for biotechnological applications.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Bactérias / Archaea / Ecossistema / Microbiologia Ambiental Tipo de estudo: Prognostic_studies / Risk_factors_studies Idioma: En Ano de publicação: 2014 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Bactérias / Archaea / Ecossistema / Microbiologia Ambiental Tipo de estudo: Prognostic_studies / Risk_factors_studies Idioma: En Ano de publicação: 2014 Tipo de documento: Article