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- Title
Antifouling activity of twelve demosponges from Brazil.
- Authors
Ribeiro, S. M.; Rogers, R.; Rubem, A. C.; Da Gama, B. A. P; Muricy, G.; Pereira, R. C.
- Abstract
Benthic marine organisms are constantly exposed to fouling, which is harmful to most host species. Thus, the produc-tion of secondary metabolites containing antifouling properties is an important ecological advantage for sessile organ-isms and may also provide leading compounds for the development of antifouling paints. High antifouling potential of sponges has been demonstrated in the Indian and Pacific oceans and in the Caribbean and Mediterranean seas. Brazil-ian sponges remain understudied concerning antifouling activities. Only two scientific articles reported this activity in sponges of Brazil. The objective of this study was to test crude extracts of twelve species of sponges from Brazil against the attachment of the mussel Penìa perna through laboratorial assays, and highlight promising species for fu-ture studies. The species Petromica citrina, Amphimedon viridis, Desmapsamma anchorata, Chondrosia sp., Polymastia janeirensis, Tedania ignis, Aplysina fulva, Mycale angulosa, Hymeniacidon heliophila, Dysidea etheria, Tethya rubra, and Tethya maza were frozen and freeze-dried before extraction with acetone or dichloromethane. The crude extract of four species significantly inhibited the attachment of byssus: Tethya rubra (p = 0.0009), Tethya maza (p = 0.0039), Petromica citrina (p = 0.0277), and Hymeniacidon heliophila (p = 0.00003). These species, specially, should be the target of future studies to detail the substances involved in the ability antifouling well as to define its am-plitude of action.
- Subjects
MEDITERRANEAN Sea; BRAZIL; ANTIFOULING paint; DEMOSPONGIAE; MARINE organisms; BENTHIC ecology; METABOLITES
- Publication
Brazilian Journal of Biology, 2013, Vol 73, Issue 3, p501
- ISSN
1519-6984
- Publication type
Article
- DOI
10.1590/S1519-69842013000300006