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Design of Nanostructures for Versatile Therapeutic Applications
2018, Pages 325-377

Environmental conditions affect activity and associated microorganisms of marine sponges

Daniela Batistaa, Rafaela Costaa, Ana Polycarpa Carvalhoa, William Romão Batistaa, Cintia P.J.Ruab, Louiside Oliveirab, Luciana Leomilb, Adriana M.Fróesb, Fabiano L.Thompsonb, Ricardo Coutinhoa, Sergey Dobretsovc,d

Instituto de Estudos do Mar Almirante Paulo Moreira, Rua Kioto no 253, Praia dos Anjos, Arraial do Cabo, RJ, Brazil.

Abstract

Changes in environmental conditions can influence sponges and their holobionts. The present study investigated the effect of upwelling and anthropogenic pollution on the bioactivity of marine sponges, microbial communities and functional genes, and composition of their chemical compounds. The species Dysidea etheriaDarwinella sp., Hymeniacidon heliophila and Tedania ignis were collected from areas with distinct influence of upwelling and low anthropogenic impact and from areas without influence of upwelling but affected by sewage and the port. In most cases, the same sponge species collected from areas with distinct environmental conditions had a different chemical composition, antifouling activity, composition and diversity of associated microorganisms. Antimicrobial, quorum sensing inhibitory and anti-larval activities of sponge extracts were more pronounced in the area without upwelling showing higher level of anthropogenic pollution. This study suggests that upwelling and anthropogenic pollution affect the chemical activity and holobiome composition of sponges.

Keywords: Sponge, Antifouling, Secondary metabolites, Quorum sensing, Metagenome, Microbial community,Functional genes.

 
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