Antagonistic Interactions among Bacteria Isolated from either the Same or from Different Sponges Native to the Brazilian CoastMarinella S Laport1,3*, Juliana F Santos-Gandelman1, Guilherme Muricy2, Marcia Giambiagi-deMarval1 and Isabelle George3
1Laboratory Molecular Bacteriology and Marine Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, University City, 21941-590, Rio de Janeiro, Brazil
- *Corresponding Author:
- Marinella S Laport
Laboratory Molecular Bacteriology and
Marine Institute of Microbiology Paulo de Goes
Federal University of Rio de Janeiro (UFRJ)
Av. Carlos Chagas Filho, 373
University City, 21941-590, Rio de Janeiro, Brazil
E-mail: [email protected]
Received Date: February 09, 2016; Accepted Date: February 22, 2016; Published Date: February 29, 2016
Citation: Laport MS, Santos-Gandelman JF, Muricy G, deMarval MG, George I (2016) Antagonistic Interactions among Bacteria Isolated from either the Same or from Different Sponges Native to the Brazilian Coast. J Marine Sci Res Dev 6:185. doi: 10.4172/2155-9910.1000185
Copyright: © 2016 Laport MS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Marine sponges are sessile and filter-feeding organisms that harbor dense and diverse microbial communities of considerable ecological and biotechnological importance. They represent an important target for the study of bacterial interactions in marine ecosystems. The purpose of this study was to examine the frequency of antagonistic interactions among the culturable microbial communities associated with sponges from the Brazilian coast. The specimens were collected over six years at Cagarras Archipelago, Praia Vermelha Beach and Urca square, Rio de Janeiro State, SE Brazil. Fifty-six bacterial isolates representing four classes of cultivable sponge-associated bacteria were studied for their ability to produce inhibitory substances. Antagonistic interactions occurred among isolates from both, the same and different sponge species. Most isolates (98.2%) were able to inhibit growth of at least one indicator bacterium. In contrast, there were few antagonistic interactions among bacteria obtained from the same sponge specimen. Our results suggest that chemical antagonism could play a significant role in shaping the bacterial communities within sponge tissues.