Marine microbial community responses related to wetland carbon mobilization in the coastal zone
Abstract
Here we examine how marine microbial communities respond when dissolved organic matter (DOM) is mobilized from coastal wetlands. Biological transformations of this DOM may increase in the presence of reactive substrates, such as algal-derived DOM (ADOM) in the coastal zone—a process known as priming. We performed laboratory experiments examining transformations of DOM derived from coastal wetland peat (PDOM) with and without the presence ADOM. Associated shifts in microbial community composition and functional gene abundance were measured to evaluate mechanisms of priming effects. ADOM presence stimulated CO2 production when compared to the seawater control, which was further enhanced in the co-presence of PDOM. DOM characterization showed a substantial difference in features present at the end of the incubation when PDOM was present with and without ADOM, while metagenomic sequencing indicated shifts in microbial community composition and identified 23 unique functional genes associated with pathways for the breakdown of aromatic compounds.
- Authors:
-
[1];
[6];
- Marine Sciences Laboratory Pacific Northwest National Laboratory Sequim Washington, School of Oceanography University of Washington Seattle Washington
- Department of Geological Sciences University of Florida Gainesville Florida, Soil &, Water Sciences Department University of Florida Gainesville Florida
- Geochemical and Environmental Research Group Texas A&,M University College Station Texas, Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland Washington
- Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland Washington
- Soil &, Water Sciences Department University of Florida Gainesville Florida, Whitney Laboratory for Marine Bioscience University of Florida St. Augustine Florida
- Soil &, Water Sciences Department University of Florida Gainesville Florida
- Department of Geological Sciences University of Florida Gainesville Florida
- Publication Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1484390
- Alternate Identifier(s):
- OSTI ID: 1484391; OSTI ID: 1572977
- Report Number(s):
- PNNL-SA-134462
Journal ID: ISSN 2378-2242
- Grant/Contract Number:
- DE‐AC05‐76RL01830; AC05-76RL01830
- Resource Type:
- Published Article
- Journal Name:
- Limnology and Oceanography Letters
- Additional Journal Information:
- Journal Name: Limnology and Oceanography Letters Journal Volume: 4 Journal Issue: 1; Journal ID: ISSN 2378-2242
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; aquatic; bacteria; biogeochemistry; biology; blue carbon; carbon cycling; carbon dioxide; climate change; coastal; continuum; cycling; decomposition; dissolved organic carbon; ecosystem; ecotone; erosion; estuarine; exoenzyme; genomic; gradients; interface; marsh; metabalomic; metabolite; metagenome; microbes; microbial; organic matter; organic carbon; oxidation; priming; respiration; stable isotope; sequestration; terrestial aquatic interface; tidal; wetland; wetland soils
Citation Formats
Ward, Nicholas D., Morrison, Elise S., Liu, Yina, Rivas‐Ubach, Albert, Osborne, Todd Z., Ogram, Andrew V., and Bianchi, Thomas S. Marine microbial community responses related to wetland carbon mobilization in the coastal zone. United States: N. p., 2018.
Web. doi:10.1002/lol2.10101.
Ward, Nicholas D., Morrison, Elise S., Liu, Yina, Rivas‐Ubach, Albert, Osborne, Todd Z., Ogram, Andrew V., & Bianchi, Thomas S. Marine microbial community responses related to wetland carbon mobilization in the coastal zone. United States. https://doi.org/10.1002/lol2.10101
Ward, Nicholas D., Morrison, Elise S., Liu, Yina, Rivas‐Ubach, Albert, Osborne, Todd Z., Ogram, Andrew V., and Bianchi, Thomas S. Mon .
"Marine microbial community responses related to wetland carbon mobilization in the coastal zone". United States. https://doi.org/10.1002/lol2.10101.
@article{osti_1484390,
title = {Marine microbial community responses related to wetland carbon mobilization in the coastal zone},
author = {Ward, Nicholas D. and Morrison, Elise S. and Liu, Yina and Rivas‐Ubach, Albert and Osborne, Todd Z. and Ogram, Andrew V. and Bianchi, Thomas S.},
abstractNote = {Here we examine how marine microbial communities respond when dissolved organic matter (DOM) is mobilized from coastal wetlands. Biological transformations of this DOM may increase in the presence of reactive substrates, such as algal-derived DOM (ADOM) in the coastal zone—a process known as priming. We performed laboratory experiments examining transformations of DOM derived from coastal wetland peat (PDOM) with and without the presence ADOM. Associated shifts in microbial community composition and functional gene abundance were measured to evaluate mechanisms of priming effects. ADOM presence stimulated CO2 production when compared to the seawater control, which was further enhanced in the co-presence of PDOM. DOM characterization showed a substantial difference in features present at the end of the incubation when PDOM was present with and without ADOM, while metagenomic sequencing indicated shifts in microbial community composition and identified 23 unique functional genes associated with pathways for the breakdown of aromatic compounds.},
doi = {10.1002/lol2.10101},
journal = {Limnology and Oceanography Letters},
number = 1,
volume = 4,
place = {United States},
year = {Mon Dec 03 00:00:00 EST 2018},
month = {Mon Dec 03 00:00:00 EST 2018}
}
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https://doi.org/10.1002/lol2.10101
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