Construction and analysis of fractional multifactorial design to study attachment strength and transfer of Listeria monocytogenes from pure or mixed biofilms after contact with solid model food

Article Abstract:

A study was conducted to establish which of the seven factors influences the adhesion strength and hence bacterial transfer between biofilms containing Listeria monocytogenes (pure and two-species biofilms) and tryptone Soya agar as a solid organic surface. The results revealed that the bacteria that resisted a chlorinated alkaline product and a glutaraldehyde- and quaternary ammonium-based disinfectant had greater adhesion strength than those determined for untreated biofilms.

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Induction of glutathione S-transferase in biofilms and germinating spores of Mucor hiemalis strain EH5 from cold sulfidic spring waters

Article Abstract:

The effects of sulfur stress on the induction of glutathione S-transferase (GST) in biofilms and the aquatic fungus Mucor hiemalis strain EH5 in a cold sulfidic spring, as well as on the immunofluorescence localization and characterization of GSTs are investigated. The results have helped in understanding the induction of GST by sulfurous compounds, as well as to the immunofluorescence visualization of GST in aquatic fungus and fungus-bacterium biofilms.

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Effect of biofilm formation by Pseudoalteromonas spongiae on induction of larval settlement of the polychaete Hydroides elegans

Article Abstract:

The possible relevance of biofilm formation for its ability to induce larval settlement of Hydroides elegans was examined. Results concluded that the ability of marine bacterium Pseudoalteromonas spongiae to induce larval settlement of Hydroides elegans was related with its biofilm formation.

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