title: Mussel (Mytilus edulis) byssus deposition in response to variations in surface wettability.
abstract: Mussels (Mytilus edulis) are economically important in their role as an aquaculture species and also with regard to marine biofouling. They attach tenaciously to a wide variety of submerged surfaces by virtue of collagenous attachment threads termed 'byssi'. The aim of this study was to characterize the spreading of the byssal attachment plaque, which mediates attachment to the surface, on a range of surfaces in response to changes in wettability. To achieve this, well characterized self-assembled monolayers of omega-terminated alkanethiolates on gold were used, allowing correlation of byssal plaque spreading with a single surface characteristic--wettability. The present results were inconsistent with those from previous studies, in that there was a positive correlation between plaque size and surface wettability; a trend which is not explained by conventional wetting theory for a three-phase system. A recent extension to wetting theory with regard to hydrophilic proteins is discussed and the results of settlement assays are used to attempt reconciliation of these results with those of similar previous studies and, also, with recent data presented for the spreading of Ulva linza spore adhesive.
authors.affiliation: University of Newcastle upon Tyne, School of Marine Science and Technology, Newcastle NE1 7RU, UK. nicholas.aldred@ncl.ac.uk
authors.forename: N
authors.initials: N
authors.lastname: Aldred
authors.forename: L K
authors.initials: LK
authors.lastname: Ista
authors.forename: M E
authors.initials: ME
authors.lastname: Callow
authors.forename: J A
authors.initials: JA
authors.lastname: Callow
authors.forename: G P
authors.initials: GP
authors.lastname: Lopez
authors.forename: A S
authors.initials: AS
authors.lastname: Clare
mesh_terms: D000268:Adhesiveness; D000818:Animals; D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D008956:Models, Chemical; D008958:Models, Molecular; D008968:Molecular Conformation; D049880:Mytilus edulis / Q000737:chemistry*; D044367:Phase Transition; D011506:Proteins / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D011506:Proteins; C037403:adhesive protein, mussel