Antifouling activity of symbiotic bacteria from sponge Aplysina gerardogreeni

Bromotyrosine-derived alkaloids from the Caribbean sponge Aplysina lacunosa

Three new bromotyrosine-derived alkaloids 14-debromo-11-deoxyfistularin-3 (1), aplysinin A (2), and aplysinin B (3), together with 15 known compounds (4-18) were isolated from the sponge Aplysina lacunosa collected from Stirrup Cay, Bahamas. The structures of the isolated compounds were identified on the basis of MS and NMR data analysis. The (13)C NMR assignment of spirocyclohexadienylisoxazol...

Bioactive Compounds from the Marine Sponge Geodia barretti Characterization, Antifouling Activity and Molecular Targets

Rubrobacter aplysinae sp. nov. isolated from the marine sponge Aplysina aerophoba.

A Gram-stain-positive, non-spore-forming bacterium (strain RV113(T)) was isolated from the marine sponge Aplysina aerophoba. 16S rRNA gene sequence analysis showed that strain RV113(T) belongs to the genus Rubrobacter, and is related most closely to Rubrobacter bracarensis VF70612_S1(T) (96.9% similarity) and more distantly related (<93%) to all other species of the genus Rubrobacter. The pepti...

Oxygen dynamics and transport in the Mediterranean sponge Aplysina aerophoba

The Mediterranean sponge Aplysina aerophoba kept in aquaria or cultivation tanks can stop pumping for several hours or even days. To investigate changes in the chemical microenvironments, we measured oxygen profiles over the surface and into the tissue of pumping and non-pumping A. aerophoba specimens with Clark-type oxygen microelectrodes (tip diameters 18-30 μm). Total oxygen consumption rate...

Advances in the production of sponge biomass Aplysina aerophoba--a model sponge for ex situ sponge biomass production.

Sponges are a promising source of organic compounds of potential interest regarding industrial and medical applications. For detailed studies on such compounds, large amounts of sponge biomass are required. Obtaining that is at present extremely difficult because most sponges are relatively rare in nature and their mass cultivation in the laboratory has not yet been accomplished. In this study ...