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Bacterial Vesicles in Marine Ecosystems

Author(s)
Biller, Steven; Schubotz, Florence; Roggensack, Sara; Thompson, Anne W.; Summons, Roger Everett; Chisholm, Sallie (Penny); ... Show more Show less
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Abstract
Many heterotrophic bacteria are known to release extracellular vesicles, facilitating interactions between cells and their environment from a distance. Vesicle production has not been described in photoautotrophs, however, and the prevalence and characteristics of vesicles in natural ecosystems is unknown. Here, we report that cultures of Prochlorococcus, a numerically dominant marine cyanobacterium, continuously release lipid vesicles containing proteins, DNA, and RNA. We also show that vesicles carrying DNA from diverse bacteria are abundant in coastal and open-ocean seawater samples. Prochlorococcus vesicles can support the growth of heterotrophic bacterial cultures, which implicates these structures in marine carbon flux. The ability of vesicles to deliver diverse compounds in discrete packages adds another layer of complexity to the flow of information, energy, and biomolecules in marine microbial communities.
Date issued
2014-01
URI
http://hdl.handle.net/1721.1/84545
Department
Massachusetts Institute of Technology. Department of Biology; Massachusetts Institute of Technology. Department of Civil and Environmental Engineering; Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Biller, S. J., F. Schubotz, S. E. Roggensack, A. W. Thompson, R. E. Summons, and S. W. Chisholm. “Bacterial Vesicles in Marine Ecosystems.” Science 343, no. 6167 (January 9, 2014): 183-186.
Version: Author's final manuscript
ISSN
0036-8075
1095-9203

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