Interactive Effects of Viral and Bacterial Production on Marine Bacterial Diversity
| Autor: | Fereidoun Rassoulzadegan, Toshi Nagata, Chiaki Motegi, Takeshi Miki, Markus G. Weinbauer, Louis Legendre |
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| Přispěvatelé: | Laboratoire d'océanographie de Villefranche (LOV), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Marine Biogeochemistry Group, The University of Tokyo (UTokyo), National Taiwan Ocean University (NTOU), Observatoire océanologique de Villefranche-sur-mer (OOVM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Operational taxonomic unit
Aquatic Organisms lcsh:Medicine Microbiology 03 medical and health sciences chemistry.chemical_compound Diversity index Marine bacteriophage Seawater 14. Life underwater lcsh:Science [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography 030304 developmental biology 0303 health sciences Multidisciplinary biology Bacteria 030306 microbiology lcsh:R Species diversity Biodiversity biology.organism_classification Phosphate 16S ribosomal RNA Terminal restriction fragment length polymorphism chemistry Viruses lcsh:Q Water Microbiology Research Article |
| Zdroj: | PLoS ONE PLoS ONE, 2013, 8 (11), ⟨10.1371/journal.pone.0076800⟩ PLoS ONE, Vol 8, Iss 11, p e76800 (2013) |
| ISSN: | 1932-6203 |
| Popis: | International audience; A general model of species diversity predicts that the latter is maximized when productivity and disturbance are balanced. Based on this model, we hypothesized that the response of bacterial diversity to the ratio of viral to bacterial production (VP/BP) would be dome-shaped. In order to test this hypothesis, we obtained data on changes in bacterial communities (determined by terminal restriction fragment length polymorphism of 16S rRNA gene) along a wide VP/BP gradient (more than two orders of magnitude), using seawater incubations from NW Mediterranean surface waters, i.e., control and treatments with additions of phosphate, viruses, or both. In December, one dominant Operational Taxonomic Unit accounted for the major fraction of total amplified DNA in the phosphate addition treatment (75 +/- 20%, +/- S.D.), but its contribution was low in the phosphate and virus addition treatment (23 +/- 19%), indicating that viruses prevented the prevalence of taxa that were competitively superior in phosphate-replete conditions. In contrast, in February, the single taxon predominance in the community was held in the phosphate addition treatment even with addition of viruses. We observed statistically robust dome-shaped response patterns of bacterial diversity to VP/BP, with significantly high bacterial diversity at intermediate VP/BP. This was consistent with our model-based hypothesis, indicating that bacterial production and viral-induced mortality interactively affect bacterial diversity in seawater. |
| Databáze: | OpenAIRE |
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