Naslov
Initial monolayer formation in marine biofilms

Autori
Kovač, Solveg ; Žutić, Vera ; Svetličić, Vesna

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Rapport de 35e Congres de la CIESM 35th CIESM Congress Proceedings / Briand, Frederic - Monte Carlo : Multiprint - Monaco, 1998, 350-351

Skup
Commission Internationale pour l'exploration scientifique de la mer Mediterranee

Mjesto i datum
Dubrovnik, Hrvatska, 01.06.1998. - 05.06.1998

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
biofilm; D.tertiolecta; initial monolayers; marine bacteria; mercury electrode

Sažetak
Studies of biofilm formation are essential for understanding and control of processes in natural aquatic systems and for industrial application. Experiments with expanding mercury electrode/seawater interface offer an approach to studies of initial monolayer in biofilm formation in seawater. Chronoamperometry of dissolved oxygen was used as a measuring technic. Dynamics of film formation is measured as a time which is necessary to reach a full coverage of the electrode by adsorption of dissolved biomolecules and/or adhesion of cells suspended in aqueous electrolyte solution. Phytoplankton organism D.tertiolecta, a free-living bacteria strain and hydrophobic Acinetobacter sp. were chosen as model organisms. Dextran and albumin were chosen as dissolved biomolecules, and triton T-X-100 as nonionic detergent. We have demonstrated direct competition of adsorption of dissolved biomolecules and adhesion of cells in the initial monolayer formation at a freshly exposed surface and a high rate of such processes.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA