| Title | The microbiome associated with two Synechococcus ribotypes at different levels of ecological interaction. |
| Abstract | Planktonic cyanobacteria belonging to the genus Synechococcus are ubiquitously distributed in marine and fresh waters, substantially contributing to total carbon fixation on a global scale. While their ecological relevance is acknowledged, increasing resolution in molecular techniques allows disentangling cyanobacteria's role at the micro-scale, where complex microbial interactions may drive the overall community assembly. The interplay between phylogenetically different Synechococcus clades and their associated bacterial communities can affect their ecological fate and susceptibility to protistan predation. In this study, we experimentally promoted different levels of ecological interaction by mixing two Synechococcus ribotypes (MW101C3 and LL) and their associated bacteria, with and without a nanoflagellate grazer (Poterioochromonas sp.) in laboratory cultures. The beta-diversity of the Synechococcus-associated microbiome in laboratory cultures indicated that the presence of the LL ribotype was the main factor determining community composition changes (41% of total variance), and prevailed over the effect of protistan predation (18% of total variance). Our outcomes also showed that species coexistence and predation may promote microbial diversity, thus highlighting the underrated ecological relevance of such micro-scale factors. |
| Source | Journal of phycology (Online) |
| Keywords | associated microbiomecoexistencepicocyanobacteriapredationSynechococcus |
| Journal | Journal of phycology (Online) |
| Editor | Blackwell Science, Inc.., Malden, MA, Stati Uniti d'America |
| Year | 2017 |
| Type | Articolo in rivista |
| DOI | 10.1111/jpy.12583 |
| Authors | Callieri, Cristiana; Amalfitano, Stefano; Corno, Gianluca; Di Cesare, Andrea; Bertoni, Roberto; Eckert, Ester M |
| Text | 379530 2017 10.1111/jpy.12583 ISI Web of Science WOS 28915336 associated microbiome coexistence picocyanobacteria predation Synechococcus The microbiome associated with two Synechococcus ribotypes at different levels of ecological interaction. Callieri, Cristiana; Amalfitano, Stefano; Corno, Gianluca; Di Cesare, Andrea; Bertoni, Roberto; Eckert, Ester M Institute of Ecosystem Study CNR ISE, Largo Tonolli 50, 28922, Verbania, Italy. Water Research Institute CNR IRSA, Via Salaria Km 29,300, 00015, Monterotondo, Roma, Italy Planktonic cyanobacteria belonging to the genus Synechococcus are ubiquitously distributed in marine and fresh waters, substantially contributing to total carbon fixation on a global scale. While their ecological relevance is acknowledged, increasing resolution in molecular techniques allows disentangling cyanobacteria s role at the micro scale, where complex microbial interactions may drive the overall community assembly. The interplay between phylogenetically different Synechococcus clades and their associated bacterial communities can affect their ecological fate and susceptibility to protistan predation. In this study, we experimentally promoted different levels of ecological interaction by mixing two Synechococcus ribotypes MW101C3 and LL and their associated bacteria, with and without a nanoflagellate grazer Poterioochromonas sp. in laboratory cultures. The beta diversity of the Synechococcus associated microbiome in laboratory cultures indicated that the presence of the LL ribotype was the main factor determining community composition changes 41% of total variance , and prevailed over the effect of protistan predation 18% of total variance . Our outcomes also showed that species coexistence and predation may promote microbial diversity, thus highlighting the underrated ecological relevance of such micro scale factors. Published version Articolo in rivista Blackwell Science, Inc.. 1529 8817 Journal of phycology Online Journal of phycology Online J. phycol. Online Journal of phycology. Online roberto.bertoni BERTONI ROBERTO estermaria.eckert ECKERT ESTER MARIA cristiana.callieri CALLIERI CRISTIANA stefano.amalfitano AMALFITANO STEFANO gianluca.corno CORNO GIANLUCA andrea.dicesare DI CESARE ANDREA |
