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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Baines, John F. Künzel, Sven Bosch, Thomas C. G. Walter, Jonas Fraune, Sebastian Franzenburg, Sören Wang, Jun |
| Description | Author Affiliation: Franzenburg S ( Zoological Institute, Christian-Albrechts University of Kiel, 24098 Kiel, Germany.); |
| Abstract | Animals are colonized by coevolved bacterial communities, which contribute to the host's health. This commensal microbiota is often highly specific to its host-species, inferring strong selective pressures on the associated microbes. Several factors, including diet, mucus composition, and the immune system have been proposed as putative determinants of host-associated bacterial communities. Here we report that species-specific antimicrobial peptides account for different bacterial communities associated with closely related species of the cnidarian Hydra. Gene family extensions for potent antimicrobial peptides, the arminins, were detected in four Hydra species, with each species possessing a unique composition and expression profile of arminins. For functional analysis, we inoculated arminin-deficient and control polyps with bacterial consortia characteristic for different Hydra species and compared their selective preferences by 454 pyrosequencing of the bacterial microbiota. In contrast to control polyps, arminin-deficient polyps displayed decreased potential to select for bacterial communities resembling their native microbiota. This finding indicates that species-specific antimicrobial peptides shape species-specific bacterial associations. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 39 |
| Volume Number | 110 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2013-09-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Antimicrobial Cationic Peptides Metabolism Bacteria Immunology Host Specificity Hydra Microbiology Animals Growth & Development Coculture Techniques Colony Count, Microbial Gene Knockdown Techniques Gene Silencing Microbiota Molecular Sequence Data Phylogeny Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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