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PeerJ, PeerJ, (2), p. e419, 2014

DOI: 10.7717/peerj.419

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Diversity and antimicrobial potential of culturable heterotrophic bacteria associated with the endemic marine spongeArenosclera brasiliensis

Journal article published in 2014 by Cintia P. J. Rua, Amaro E. Trindade-Silva ORCID, Luciana R. Appolinario, Tainá M. Venas, Gizele D. Garcia, Lucas S. Carvalho, Alinne Lima, Ricardo Kruger ORCID, Renato C. Pereira, Roberto G. S. Berlinck, Rogério A. B. Valle, Cristiane C. Thompson, Fabiano Thompson
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Marine sponges are the oldest Metazoa, very often presenting a complex microbial consortium. Such is the case of the marine sponge Arenosclera brasiliensis, endemic to Rio de Janeiro State, Brazil. In this investigation we characterized the diversity of some of the culturable heterotrophic bacteria living in association with A. brasiliensis and determined their antimicrobial activity. The genera Endozoicomonas (N = 32), Bacillus (N = 26), Shewanella (N = 17), Pseudovibrio (N = 12), and Ruegeria (N = 8) were dominant among the recovered isolates, corresponding to 97% of all isolates. Approximately one third of the isolates living in association with A. brasiliensis produced antibiotics that inhibited the growth of Bacillus subtilis, suggesting that bacteria associated with this sponge play a role in its health.