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An experimental model for the spatial structuring and selection of bacterial communities

Journal Article


Abstract


  • Community-level selection is an important concept in evolutionary biology and has been predicted to arise in systems that are spatially structured. Here we develop an experimental model for spatially-structured bacterial communities based on coaggregating strains and test their relative fitness under a defined selection pressure. As selection we apply protozoan grazing in a defined, continuous culturing system. We demonstrate that a slow-growing bacterial strain Blastomonas natatoria 2.1, which forms coaggregates with Micrococcus luteus, can outcompete a fast-growing, closely related strain Blastomonas natatoria 2.8 under conditions of protozoan grazing. The competitive benefit provided by spatial structuring has implications for the evolution of natural bacterial communities in the environment.

Authors


  •   Thomas, Torsten (external author)
  •   Kindinger, Ilona (external author)
  •   Yu, Dan (external author)
  •   Esvaran, Meera (external author)
  •   Blackall, Linda L. (external author)
  •   Forehead, Hugh I.
  •   Johnson, Craig R. (external author)
  •   Manefield, Michael J. (external author)

Publication Date


  • 2011

Citation


  • Thomas, T., Kindinger, I., Yu, D., Esvaran, M., Blackall, L., Forehead, H., Johnson, C. R. & Manefield, M. (2011). An experimental model for the spatial structuring and selection of bacterial communities. Journal of Microbiological Methods, 87 (2), 165-168.

Scopus Eid


  • 2-s2.0-80053560843

Ro Metadata Url


  • http://ro.uow.edu.au/smartpapers/181

Has Global Citation Frequency


Number Of Pages


  • 3

Start Page


  • 165

End Page


  • 168

Volume


  • 87

Issue


  • 2

Place Of Publication


  • Netherlands

Abstract


  • Community-level selection is an important concept in evolutionary biology and has been predicted to arise in systems that are spatially structured. Here we develop an experimental model for spatially-structured bacterial communities based on coaggregating strains and test their relative fitness under a defined selection pressure. As selection we apply protozoan grazing in a defined, continuous culturing system. We demonstrate that a slow-growing bacterial strain Blastomonas natatoria 2.1, which forms coaggregates with Micrococcus luteus, can outcompete a fast-growing, closely related strain Blastomonas natatoria 2.8 under conditions of protozoan grazing. The competitive benefit provided by spatial structuring has implications for the evolution of natural bacterial communities in the environment.

Authors


  •   Thomas, Torsten (external author)
  •   Kindinger, Ilona (external author)
  •   Yu, Dan (external author)
  •   Esvaran, Meera (external author)
  •   Blackall, Linda L. (external author)
  •   Forehead, Hugh I.
  •   Johnson, Craig R. (external author)
  •   Manefield, Michael J. (external author)

Publication Date


  • 2011

Citation


  • Thomas, T., Kindinger, I., Yu, D., Esvaran, M., Blackall, L., Forehead, H., Johnson, C. R. & Manefield, M. (2011). An experimental model for the spatial structuring and selection of bacterial communities. Journal of Microbiological Methods, 87 (2), 165-168.

Scopus Eid


  • 2-s2.0-80053560843

Ro Metadata Url


  • http://ro.uow.edu.au/smartpapers/181

Has Global Citation Frequency


Number Of Pages


  • 3

Start Page


  • 165

End Page


  • 168

Volume


  • 87

Issue


  • 2

Place Of Publication


  • Netherlands