• 한국수산과학회지
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• 제45권1호
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• pp.30-34
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• 2012

The filamentous bacterium Leucothrix mucor, an epiphyte of seaweed, showed antifouling activity against Ulva pertusa spore settlement and germling development. The chemical constituents representing the antifouling activity were identified as giffinisterone B and oleamide based on nuclear magnetic resonance (NMR) spectroscopy and mass spectroscopy (MS). Approximately 3.6 mg of giffinisterone B and 2.8 mg of oleamide were isolated from 1.6 g of Leucothrix mucor crude extract. Giffinisterone B fully inhibited spore settlement and germling development at $100{\mu}g/mL$. Oleamide inhibited spore settlement at $10{\mu}g/mL$ and germling development at $100{\mu}g/mL$.