Community structure and biogeochemical impacts of microbial life on floating pumice

James Elser, M. Bastidas Navarro, J. R. Corman, H. Emick, M. Kellom, C. Laspoumaderes, Z. M. Lee, A. T. Poret-Peterson, E. Balseiro, B. Modenutti

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Volcanic eruptions are a widespread force of geological and ecological disturbance and present recurrent opportunities for the study of biological responses to novel habitat formation. However, scientific study of such events is difficult given their short duration and often distant location. Here we report results from opportunistic sampling of unique volcano-generated habitats formed during the 2011 explosive eruption in the Puyehue-Cordón Caulle complex (Chile), when massive amounts of pumice were ejected, creating novel floating substrata that have never before been characterized from a microbiological perspective. DNA sequencing revealed a dynamic community of microbes that came to inhabit the pumice, with a unique composition distinct from that of the lakes' surface waters and with suggestions of ecological convergence across lakes and sampling times. Furthermore, biogeochemical studies of net nutrient fluxes showed that, while the fresh pumice arriving to the lakes was an initial source of phosphorus (P), colonized pumice had high rates of nitrogen (N) and P uptake and was sufficiently abundant to represent a significant lake-wide nutrient sink. These findings highlight the remarkable versatility of microbes in exploiting novel environments and are consistent with a recent proposal of floating pumice as a favorable environment for the initial origins of life on early Earth.

Original languageEnglish (US)
Pages (from-to)1542-1549
Number of pages8
JournalApplied and Environmental Microbiology
Volume81
Issue number5
DOIs
StatePublished - 2015

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pumice
Lakes
community structure
lakes
Ecosystem
lake
Volcanic Eruptions
volcanic eruption
microorganisms
Food
origin of life
early Earth
volcanoes
nutrient
Chile
nutrients
sampling
habitat
habitats
DNA Sequence Analysis

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Food Science
  • Biotechnology
  • Ecology

Cite this

Elser, J., Bastidas Navarro, M., Corman, J. R., Emick, H., Kellom, M., Laspoumaderes, C., ... Modenutti, B. (2015). Community structure and biogeochemical impacts of microbial life on floating pumice. Applied and Environmental Microbiology, 81(5), 1542-1549. https://doi.org/10.1128/AEM.03160-14

Community structure and biogeochemical impacts of microbial life on floating pumice. / Elser, James; Bastidas Navarro, M.; Corman, J. R.; Emick, H.; Kellom, M.; Laspoumaderes, C.; Lee, Z. M.; Poret-Peterson, A. T.; Balseiro, E.; Modenutti, B.

In: Applied and Environmental Microbiology, Vol. 81, No. 5, 2015, p. 1542-1549.

Research output: Contribution to journalArticle

Elser, J, Bastidas Navarro, M, Corman, JR, Emick, H, Kellom, M, Laspoumaderes, C, Lee, ZM, Poret-Peterson, AT, Balseiro, E & Modenutti, B 2015, 'Community structure and biogeochemical impacts of microbial life on floating pumice', Applied and Environmental Microbiology, vol. 81, no. 5, pp. 1542-1549. https://doi.org/10.1128/AEM.03160-14
Elser, James ; Bastidas Navarro, M. ; Corman, J. R. ; Emick, H. ; Kellom, M. ; Laspoumaderes, C. ; Lee, Z. M. ; Poret-Peterson, A. T. ; Balseiro, E. ; Modenutti, B. / Community structure and biogeochemical impacts of microbial life on floating pumice. In: Applied and Environmental Microbiology. 2015 ; Vol. 81, No. 5. pp. 1542-1549.
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