Isethionic acid and floridoside isolated from the red alga, Grateloupia turuturu, inhibit settlement of Balanus amphitrite cyprid larvae

  • Biofouling. 2004 Jun;20(3):139-45. doi: 10.1080/08927010412331279605.
Claire Hellio  1 ,  Christelle Simon-Colin ,  Anthony S Clare ,  Eric Deslandes
Affiliations
  • 1. School of Marine Science and Technology, Ridley Building, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
PMID: 15545063 DOI: 10.1080/08927010412331279605
Abstract

Isethionic acid (2-hydroxyethane sulfonic acid) and floridoside (2-O-alpha-D-galactopyranosylglycerol) were extracted from the red alga, Grateloupia turuturu, and tested for anti-settlement activity against cyprid larvae of the tropical barnacle, Balanus amphitrite and for their toxicity to nauplius larvae. Isethionic acid was active for anti-settlement but had the disadvantage of being toxic to nauplius larvae. Floridoside was a potent inhibitor of cyprid settlement at non-toxic concentrations to nauplii (0.01 mg ml(-1)).

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