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Title: Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics [Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics and NanoSIMS.]

Abstract

Photosynthetic microbial mats possess extraordinary phylogenetic and functional diversity that makes linking specific pathways with individual microbial populations a daunting task. Close metabolic and spatial relationships between Cyanobacteria and Chloroflexi have previously been observed in diverse microbial mats. Here in this paper, we report that an expressed metabolic pathway for the anoxic catabolism of photosynthate involving Cyanobacteria and Chloroflexi in microbial mats can be reconstructed through metatranscriptomic sequencing of mats collected at Elkhorn Slough, Monterey Bay, CA, USA. In this reconstruction, Microcoleus spp., the most abundant cyanobacterial group in the mats, ferment photosynthate to organic acids, CO2 and H2 through multiple pathways, and an uncultivated lineage of the Chloroflexi take up these organic acids to store carbon as polyhydroxyalkanoates. The metabolic reconstruction is consistent with metabolite measurements and single cell microbial imaging with fluorescence in situ hybridization and NanoSIMS.

Authors:
 [1];  [2];  [3];  [4];  [5];  [5];  [5];  [4];  [6];  [6];  [3];  [7]
  1. Stanford Univ., CA (United States). Dept. of Chemical Engineering and Civil and Environmental Engineering; NASA Ames Research Center (ARC), Moffett Field, Mountain View, CA (United States). Exobiology Branch
  2. Stanford Univ., CA (United States). Dept. of Chemical Engineering and Civil and Environmental Engineering; NASA Ames Research Center (ARC), Moffett Field, Mountain View, CA (United States). Exobiology Branch; Univ. of Vienna (Austria). Dept. of Microbial Ecology
  3. Stanford Univ., CA (United States). Dept. of Chemical Engineering and Civil and Environmental Engineering
  4. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States)
  5. NASA Ames Research Center (ARC), Moffett Field, Mountain View, CA (United States). Exobiology Branch
  6. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physical and Life Sciences Directorate
  7. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Earth Sciences Division
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); German Research Foundation (DFG)
OSTI Identifier:
1396201
Report Number(s):
LLNL-JRNL-582972
Journal ID: ISSN 1751-7362
Grant/Contract Number:  
AC52-07NA27344; AC02-05CH11231; SCW1039
Resource Type:
Accepted Manuscript
Journal Name:
The ISME Journal
Additional Journal Information:
Journal Volume: 7; Journal Issue: 4; Journal ID: ISSN 1751-7362
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 59 BASIC BIOLOGICAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; metatranscriptomics; NanoSIMS; anoxic carbon flux; fermentation; glycogen

Citation Formats

Burow, Luke C., Woebken, Dagmar, Marshall, Ian PG, Lindquist, Erika A., Bebout, Brad M., Prufert-Bebout, Leslie, Hoehler, Tori M., Tringe, Susannah G., Pett-Ridge, Jennifer, Weber, Peter K., Spormann, Alfred M., and Singer, Steven W. Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics [Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics and NanoSIMS.]. United States: N. p., 2012. Web. doi:10.1038/ismej.2012.150.
Burow, Luke C., Woebken, Dagmar, Marshall, Ian PG, Lindquist, Erika A., Bebout, Brad M., Prufert-Bebout, Leslie, Hoehler, Tori M., Tringe, Susannah G., Pett-Ridge, Jennifer, Weber, Peter K., Spormann, Alfred M., & Singer, Steven W. Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics [Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics and NanoSIMS.]. United States. https://doi.org/10.1038/ismej.2012.150
Burow, Luke C., Woebken, Dagmar, Marshall, Ian PG, Lindquist, Erika A., Bebout, Brad M., Prufert-Bebout, Leslie, Hoehler, Tori M., Tringe, Susannah G., Pett-Ridge, Jennifer, Weber, Peter K., Spormann, Alfred M., and Singer, Steven W. Thu . "Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics [Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics and NanoSIMS.]". United States. https://doi.org/10.1038/ismej.2012.150. https://www.osti.gov/servlets/purl/1396201.
@article{osti_1396201,
title = {Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics [Anoxic carbon flux in photosynthetic microbial mats as revealed by metatranscriptomics and NanoSIMS.]},
author = {Burow, Luke C. and Woebken, Dagmar and Marshall, Ian PG and Lindquist, Erika A. and Bebout, Brad M. and Prufert-Bebout, Leslie and Hoehler, Tori M. and Tringe, Susannah G. and Pett-Ridge, Jennifer and Weber, Peter K. and Spormann, Alfred M. and Singer, Steven W.},
abstractNote = {Photosynthetic microbial mats possess extraordinary phylogenetic and functional diversity that makes linking specific pathways with individual microbial populations a daunting task. Close metabolic and spatial relationships between Cyanobacteria and Chloroflexi have previously been observed in diverse microbial mats. Here in this paper, we report that an expressed metabolic pathway for the anoxic catabolism of photosynthate involving Cyanobacteria and Chloroflexi in microbial mats can be reconstructed through metatranscriptomic sequencing of mats collected at Elkhorn Slough, Monterey Bay, CA, USA. In this reconstruction, Microcoleus spp., the most abundant cyanobacterial group in the mats, ferment photosynthate to organic acids, CO2 and H2 through multiple pathways, and an uncultivated lineage of the Chloroflexi take up these organic acids to store carbon as polyhydroxyalkanoates. The metabolic reconstruction is consistent with metabolite measurements and single cell microbial imaging with fluorescence in situ hybridization and NanoSIMS.},
doi = {10.1038/ismej.2012.150},
journal = {The ISME Journal},
number = 4,
volume = 7,
place = {United States},
year = {Thu Nov 29 00:00:00 EST 2012},
month = {Thu Nov 29 00:00:00 EST 2012}
}

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