title: Diversity and antimicrobial potential of culturable heterotrophic bacteria associated with the endemic marine sponge Arenosclera brasiliensis.
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.
authors.affiliation: Instituto de Biologia, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Cintia P J
authors.initials: CP
authors.lastname: Rua
authors.affiliation: Faculdade de Tecnologia e Ciências , Salvador, Bahia , Brazil.
authors.forename: Amaro E
authors.initials: AE
authors.lastname: Trindade-Silva
authors.affiliation: Instituto de Biologia, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Luciana R
authors.initials: LR
authors.lastname: Appolinario
authors.affiliation: Instituto de Biologia, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Tainá M
authors.initials: TM
authors.lastname: Venas
authors.affiliation: Instituto de Biologia, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Gizele D
authors.initials: GD
authors.lastname: Garcia
authors.affiliation: Departamento de Biologia Celular, Universidade de Brasília , Brasília, DF , Brazil.
authors.forename: Lucas S
authors.initials: LS
authors.lastname: Carvalho
authors.affiliation: Departamento de Biologia Celular, Universidade de Brasília , Brasília, DF , Brazil.
authors.forename: Alinne
authors.initials: A
authors.lastname: Lima
authors.affiliation: Departamento de Biologia Celular, Universidade de Brasília , Brasília, DF , Brazil.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Kruger
authors.affiliation: Instituto de Biologia, Universidade Federal Fluminense , Niterói, RJ , Brazil.
authors.forename: Renato C
authors.initials: RC
authors.lastname: Pereira
authors.affiliation: Instituto de Química de São Carlos, Universidade de São Paulo , São Carlos, SP , Brazil.
authors.forename: Roberto G S
authors.initials: RG
authors.lastname: Berlinck
authors.affiliation: SAGE-COPPE Centro de Gestão Tecnológica, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Rogério A B
authors.initials: RA
authors.lastname: Valle
authors.affiliation: Instituto de Biologia, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Cristiane C
authors.initials: CC
authors.lastname: Thompson
authors.affiliation: Instituto de Biologia, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil ; SAGE-COPPE Centro de Gestão Tecnológica, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Fabiano
authors.initials: F
authors.lastname: Thompson
keywords: Antimicrobial activity; Bacteria; Porifera; Symbiont