The microbiome associated with two Synechococcus ribotypes at different levels of ecological interaction.
J Phycol
; 53(6): 1151-1158, 2017 12.
Article
em En
| MEDLINE
| ID: mdl-28915336
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.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Synechococcus
/
Microbiota
/
Características de História de Vida
Tipo de estudo:
Risk_factors_studies
Idioma:
En
Revista:
J Phycol
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Itália