Longo Caterina, Trani Roberta, Nonnis Marzano Carlotta, Mercurio Maria, Lazic Tamara, Cotugno Pietro, Santobianchi Erika, Gravina Maria Flavia
Department of Biology, University of Bari, Bari, Italy.
Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), Rome, Italy.
PeerJ. 2021 Oct 22;9:e12279. doi: 10.7717/peerj.12279. eCollection 2021.
Poriferans, as sessile organisms without rigid external covering, use secondary metabolites for protection from predators and fouling organisms. The present study tested the antifouling activity of ethanolic extract of the Mediterranean alien calcareous sponge towards juvenile mussels . Furthermore, toxicity tests on nauplii of brine shrimp and two microalgae strains, sp. and were also conducted A total attachment inhibition of was achieved at a concentration of 400 µg/mL of sponge extract. The 50% mortality of nauplii was recorded at a concentration of 500 µg/mL of ethanolic extract. The growth inhibitory effect on both marine microalgae strains has been registered at a concentration of 300 µg/mL. Our results suggest promising natural antifouling activity and low toxicity of the ethanolic extract of that could be used as antifouling compound.
海绵动物作为没有坚硬外部覆盖物的固着生物，利用次生代谢产物来抵御捕食者和污损生物。本研究测试了地中海外来钙质海绵乙醇提取物对贻贝幼体的防污活性。此外，还对卤虫无节幼体以及两种微藻菌株（ 种和 种）进行了毒性测试。在海绵提取物浓度为400 µg/mL时实现了总计 的附着抑制。在乙醇提取物浓度为500 µg/mL时记录到卤虫无节幼体50%的死亡率。在浓度为300 µg/mL时已观察到对两种海洋微藻菌株的生长抑制作用。我们的结果表明， 乙醇提取物具有良好的天然防污活性和低毒性，可作为防污化合物使用。
