Microscale ecology regulates particulate organic matter turnover in model marine microbial communities
The degradation of particulate organic matter in the ocean is a central process in the global carbon cycle, the mode and tempo of which is determined by the bacterial communities that assemble on particle surfaces. Here, we find that the capacity of communities to degrade particles is highly depende...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Science and Business Media LLC
2020
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| Online Access: | https://hdl.handle.net/1721.1/125655 |
| _version_ | 1826213306345455616 |
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| author | Enke, Tim Niklas Leventhal, Gabriel Etan Metzger, Matthew Saavedra, José T. Cordero Sanchez, Otto X. |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Enke, Tim Niklas Leventhal, Gabriel Etan Metzger, Matthew Saavedra, José T. Cordero Sanchez, Otto X. |
| author_sort | Enke, Tim Niklas |
| collection | MIT |
| description | The degradation of particulate organic matter in the ocean is a central process in the global carbon cycle, the mode and tempo of which is determined by the bacterial communities that assemble on particle surfaces. Here, we find that the capacity of communities to degrade particles is highly dependent on community composition using a collection of marine bacteria cultured from different stages of succession on chitin microparticles. Different particle degrading taxa display characteristic particle half-lives that differ by ~170 h, comparable to the residence time of particles in the ocean's mixed layer. Particle half-lives are in general longer in multispecies communities, where the growth of obligate cross-feeders hinders the ability of degraders to colonize and consume particles in a dose dependent manner. Our results suggest that the microscale community ecology of bacteria on particle surfaces can impact the rates of carbon turnover in the ocean. |
| first_indexed | 2024-09-23T15:47:17Z |
| format | Article |
| id | mit-1721.1/125655 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:47:17Z |
| publishDate | 2020 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1256552022-10-02T04:04:47Z Microscale ecology regulates particulate organic matter turnover in model marine microbial communities Enke, Tim Niklas Leventhal, Gabriel Etan Metzger, Matthew Saavedra, José T. Cordero Sanchez, Otto X. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering The degradation of particulate organic matter in the ocean is a central process in the global carbon cycle, the mode and tempo of which is determined by the bacterial communities that assemble on particle surfaces. Here, we find that the capacity of communities to degrade particles is highly dependent on community composition using a collection of marine bacteria cultured from different stages of succession on chitin microparticles. Different particle degrading taxa display characteristic particle half-lives that differ by ~170 h, comparable to the residence time of particles in the ocean's mixed layer. Particle half-lives are in general longer in multispecies communities, where the growth of obligate cross-feeders hinders the ability of degraders to colonize and consume particles in a dose dependent manner. Our results suggest that the microscale community ecology of bacteria on particle surfaces can impact the rates of carbon turnover in the ocean. NSF grant OCE-1658451 European Starting Grant no. 336938 Simons Early Career Award 410104 Alfred P Sloan fellowship FG-20166236 Swiss National Science Foundation (162251) Human Frontiers Science Program (LT000643/2016-L) 2020-06-03T18:51:41Z 2020-06-03T18:51:41Z 2018-07 2018-01 2020-05-21T14:43:35Z Article http://purl.org/eprint/type/JournalArticle 2041-1723 https://hdl.handle.net/1721.1/125655 Enke, Tim N., et al. "Microscale ecology regulates particulate organic matter turnover in model marine microbial communities." Nature Communications, 9 (2018): 2743. © 2018 The Author(s). en http://dx.doi.org/10.1038/s41467-018-05159-8 Nature Communications Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | Enke, Tim Niklas Leventhal, Gabriel Etan Metzger, Matthew Saavedra, José T. Cordero Sanchez, Otto X. Microscale ecology regulates particulate organic matter turnover in model marine microbial communities |
| title | Microscale ecology regulates particulate organic matter turnover in model marine microbial communities |
| title_full | Microscale ecology regulates particulate organic matter turnover in model marine microbial communities |
| title_fullStr | Microscale ecology regulates particulate organic matter turnover in model marine microbial communities |
| title_full_unstemmed | Microscale ecology regulates particulate organic matter turnover in model marine microbial communities |
| title_short | Microscale ecology regulates particulate organic matter turnover in model marine microbial communities |
| title_sort | microscale ecology regulates particulate organic matter turnover in model marine microbial communities |
| url | https://hdl.handle.net/1721.1/125655 |
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