Model communities hint at promiscuous metabolic linkages between ubiquitous free-living freshwater bacteria
- Genome streamlining is frequently observed in free-living aquatic microorganisms and results in physiological dependencies between microorganisms. However, we know little about the specificity of these microbial associations. In order to examine the specificity and extent of these associations, we established mixed cultures from three different freshwater environments and analyzed the cooccurrence of organisms using a metagenomic time series. Free-living microorganisms with streamlined genomes lacking multiple biosynthetic pathways showed no clear recurring pattern in their interaction partners. Free-living freshwater bacteria form promiscuous cooperative associations. This notion contrasts with the well-documented high specificities of interaction partners in host-associated bacteria. Considering all data together, we suggest that highly abundant free-living bacterial lineages are functionally versatile in their interactions despite their distinct streamlining tendencies at the single-cell level. This metabolic versatilityGenome streamlining is frequently observed in free-living aquatic microorganisms and results in physiological dependencies between microorganisms. However, we know little about the specificity of these microbial associations. In order to examine the specificity and extent of these associations, we established mixed cultures from three different freshwater environments and analyzed the cooccurrence of organisms using a metagenomic time series. Free-living microorganisms with streamlined genomes lacking multiple biosynthetic pathways showed no clear recurring pattern in their interaction partners. Free-living freshwater bacteria form promiscuous cooperative associations. This notion contrasts with the well-documented high specificities of interaction partners in host-associated bacteria. Considering all data together, we suggest that highly abundant free-living bacterial lineages are functionally versatile in their interactions despite their distinct streamlining tendencies at the single-cell level. This metabolic versatility facilitates interactions with a variable set of community members.…
Verfasserangaben: | Sarahi L. GarciaORCiD, Moritz Buck, Joshua J. HamiltonORCiD, Christian WurzbacherGND, Hans-Peter GrossartORCiDGND, Katherine D. McMahonORCiD, Alexander EilerORCiD |
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URN: | urn:nbn:de:kobv:517-opus4-427299 |
DOI: | https://doi.org/10.25932/publishup-42729 |
Titel des übergeordneten Werks (Deutsch): | Postprints der Universität Potsdam Mathematisch-Naturwissenschaftliche Reihe |
Schriftenreihe (Bandnummer): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (714) |
Publikationstyp: | Postprint |
Sprache: | Englisch |
Datum der Erstveröffentlichung: | 28.05.2019 |
Erscheinungsjahr: | 2018 |
Veröffentlichende Institution: | Universität Potsdam |
Datum der Freischaltung: | 28.05.2019 |
Freies Schlagwort / Tag: | community; interactions; metagenomics; microbial ecology; mixed cultures; promiscuous |
Ausgabe: | 714 |
Seitenanzahl: | 8 |
Quelle: | mSphere 3 (2018) Nr. 3, Art. e00202-18 DOI: 10.1128/mSphere.00202-18 |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Peer Review: | Referiert |
Publikationsweg: | Open Access |
Lizenz (Deutsch): | CC-BY - Namensnennung 4.0 International |
Externe Anmerkung: | Bibliographieeintrag der Originalveröffentlichung/Quelle |