Culturable bacterial communities associated to Brazilian Oscarella species (Porifera: Homoscleromorpha) and their antagonistic interactions
| Autor: | Guilherme Muricy, Marinella Silva Laport, Mathieu Bauwens, Suzanne de Oliveira Nunes, Isabelle George, Philippe Willenz |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Shewanella Firmicutes Bacillus Microbiology 03 medical and health sciences Anti-Infective Agents RNA Ribosomal 16S Antibiosis Proteobacteria Animals Seawater Molecular Biology biology General Medicine Biodiversity biology.organism_classification Photobacterium Vibrio Homoscleromorpha Porifera 030104 developmental biology Bacteria Brazil |
| Zdroj: | Antonie van Leeuwenhoek. 110(4) |
| ISSN: | 1572-9699 |
| Popis: | Sponges offer an excellent model to investigate invertebrate–microorganism interactions. Furthermore, bacteria associated with marine sponges represent a rich source of bioactive metabolites. The aim of this study was to characterize the bacteria inhabiting a genus of sponges, Oscarella, and their potentiality for antimicrobial production. Bacterial isolates were recovered from different Oscarella specimens, among which 337 were phylogenetically identified. The culturable community was dominated by Proteobacteria and Firmicutes, and Vibrio was the most frequently isolated genus, followed by Shewanella. When tested for antimicrobial production, bacteria of the 12 genera isolated were capable of producing antimicrobial substances. The majority of strains were involved in antagonistic interactions and inhibitory activities were also observed against bacteria of medical importance. It was more pronounced in some isolated genera (Acinetobacter, Bacillus, Photobacterium, Shewanella and Vibrio). These findings suggest that chemical antagonism could play a significant role in shaping bacterial communities within Oscarella, a genus classified as low-microbial abundance sponge. Moreover, the identified strains may contribute to the search for new sources of antimicrobial substances, an important strategy for developing therapies to treat infections caused by multidrug-resistant bacteria. This study was the first to investigate the diversity and antagonistic activity of bacteria isolated from Oscarella spp. It highlights the biotechnological potential of sponge-associated bacteria. |
| Databáze: | OpenAIRE |
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