FN Archimer Export Format PT J TI Anti-Biofilm Activity of a Hyaluronan-like Exopolysaccharide from the Marine Vibrio MO245 against Pathogenic Bacteria BT AF CHAMPION, Marie PORTIER, Emilie VALLEE-REHEL, Karine LINOSSIER, Isabelle BALNOIS, Eric VIGNAUD, Guillaume MOPPERT, Xavier HELLIO, Claire FAY, Fabienne AS 1:1;2:1;3:1;4:1;5:2;6:3;7:4;8:5;9:1; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:; C1 Laboratoire de Biotechnologies et Chimie Marines, EA3884, Université Bretagne Sud, 56321 Lorient, France Laboratoire de Biotechnologies et Chimie Marines, EA3884, Université de Bretagne Occidentale, 29000 Quimper, France Institut de Recherche Dupuy de Lôme (IRDL), UMR CNRS 6027, Université Bretagne Sud, 56321 Lorient, France Pacific Biotech, BP 140 289, 98701 Arue, France Biodimar, LEMAR UMR6539, Institut Européen de la Mer, Université Bretagne Occidentale, 29238 Brest, France C2 UBS, FRANCE UBO, FRANCE UBS, FRANCE PACIFIC BIOTECH, FRANCE UBO, FRANCE UM LEMAR IN WOS Cotutelle UMR DOAJ copubli-france copubli-univ-france TC 4 UR https://archimer.ifremer.fr/doc/00819/93107/99587.pdf LA English DT Article DE ;exopolysaccharide;anti-adhesive activity;anti-biofilm activity;marine bacteria;non biocidal agent;Pseudomonas aeruginosa;Vibrio harveyi AB Biofilms, responsible for many serious drawbacks in the medical and marine environment, can grow on abiotic and biotic surfaces. Commercial anti-biofilm solutions, based on the use of biocides, are available but their use increases the risk of antibiotic resistance and environmental pollution in marine industries. There is an urgent need to work on the development of ecofriendly solutions, formulated without biocidal agents, that rely on the anti-adhesive physico-chemical properties of their materials. In this context, exopolysaccharides (EPSs) are natural biopolymers with complex properties than may be used as anti-adhesive agents. This study is focused on the effect of the EPS MO245, a hyaluronic acid-like polysaccharide, on the growth, adhesion, biofilm maturation, and dispersion of two pathogenic model strains, Pseudomonas aeruginosa sp. PaO1 and Vibrio harveyi DSM19623. Our results demonstrated that MO245 may limit biofilm formation, with a biofilm inhibition between 20 and 50%, without any biocidal activity. Since EPSs have no significant impact on the bacterial motility and quorum sensing factors, our results indicate that physico-chemical interactions between the bacteria and the surfaces are modified due to the presence of an adsorbed EPS layer acting as a non-adsorbing layer. PY 2022 PD NOV SO Marine Drugs PU Mdpi VL 20 IS 11 UT 000910907500001 DI 10.3390/md20110728 ID 93107 ER EF