Heavy metals effect on the E. coli biofilms isolated from the polluted waters of Arieş river (Romania)
Journal Title: Extreme Life, Biospeology & Astrobiology - International Journal of the Bioflux Society - Year 2012, Vol 4, Issue 2
Abstract
Objective: Biofilms are surface-attached microbial communities consisted by multiple layers of cells embedded in a hydrated matrix. Biofilms are dynamic microbial communities in which transitions between planktonic and sessile modes of growth occur interchangeably in response to different environmental cues. The effects of three trace metals (copper, manganese and zinc) at different concentrations on Escherichia coli strains isolated from the water of Arieş river (Romania) were compared using epifluorescence microscopy. Data showed that the heavy metals affected not only the cells viability but also the biofilm formation according to the growing concentration of the metals in the media.
Authors and Affiliations
Andreea Bodoczi-Florea
Keywords
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