Accessible Requires Authentication Published by De Gruyter June 1, 2008

Anti-microfouling activities in extracts of two invasive algae: Grateloupia turuturu and Sargassum muticum

Erwan Plouguerné, Claire Hellio, Eric Deslandes, Benoît Véron and Valérie Stiger-Pouvreau
From the journal

Abstract

Marine macroalgae are particularly prone to epiphytism. The colonisation of their surface may lead to severe perturbations and sometimes to the death of the host. To protect themselves against settling and/or competing organisms, many algae have developed defences against fouling by producing a wide variety of chemically active metabolites. The goal of this study was to investigate potential anti-microfouling activities of two introduced algal species from the Brittany coast (France), Sargassum muticum (Phaeophyceae) and Grateloupia turuturu (Rhodophyceae). Thus, a complete study of the antimicrobial activities of extracts (aqueous, acetone, chloroform, dichloromethane, diethyl-ether, ethyl acetate, ethanol 96°, hexane and methanol) from S. muticum and G. turuturu against marine fouling bacteria (5 strains), fungi (5 strains) and biofilm-associated microphytobenthic strains (5) were performed. The most active extract of G. turuturu was the dichloromethane fraction, while the chloroform extract from S. muticum showed some good results. Our data suggest that these macroalgae can provide useful compounds or templates for industrial anti-microfouling applications.


Corresponding author

Received: 2007-8-22
Accepted: 2008-2-14
Published Online: 2008-06-01
Published in Print: 2008-06-01

©2008 by Walter de Gruyter Berlin New York