title: Capsular polysaccharides secreted by building façade colonisers: characterisation and adsorption to surfaces.
abstract: Exopolymers secreted by algal and cyanobacterial strains isolated from building façades were imaged by microscopy techniques. They were extracted and characterised to investigate their possible contribution to interactions with solid surfaces. The polymers were polysaccharides, with anionic and hydrophobic properties varying between the various strains. Capsular polysaccharides extracted from a strain of Klebsormidium flaccidum adsorbed in higher amounts on hydrophobic than on hydrophilic surfaces. These results tend to confirm the hypothesis that exopolymers are important in the colonisation process of microorganisms to surfaces.
authors.affiliation: Centre Scientifique et Technique du Bâtiment (CSTB), Département Enveloppe et Revêtements, Marne-la-Vallée Cedex 2, France. helene_barberousse@yahoo.fr
authors.forename: Hélène
authors.initials: H
authors.lastname: Barberousse
authors.forename: Gaël
authors.initials: G
authors.lastname: Ruiz
authors.forename: Vincent
authors.initials: V
authors.lastname: Gloaguen
authors.forename: Ruben J
authors.initials: RJ
authors.lastname: Lombardo
authors.forename: Chakib
authors.initials: C
authors.lastname: Djediat
authors.forename: Gérard
authors.initials: G
authors.lastname: Mascarell
authors.forename: Jean-Christophe
authors.initials: JC
authors.lastname: Castaing
mesh_terms: D000327:Adsorption; D001422:Bacterial Adhesion; D016667:Bacterial Capsules / Q000737:chemistry / Q000378:metabolism*; D018441:Biofilms / Q000254:growth & development; D003252:Construction Materials; D000458:Cyanobacteria / Q000145:classification / Q000254:growth & development / Q000378:metabolism / Q000502:physiology*; D056890:Eukaryota / Q000145:classification / Q000254:growth & development / Q000378:metabolism / Q000502:physiology*; D011134:Polysaccharides / Q000737:chemistry / Q000378:metabolism*
chemical_list: D011134:Polysaccharides