2012
DOI: 10.1007/s10646-012-0964-6
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Pollution-induced community tolerance of freshwater biofilms: measuring heterotrophic tolerance to Pb using an enzymatic toxicity test

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Cited by 7 publications
(8 citation statements)
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“…A decrease of this parameter had previously been observed as tolerance levels increased for biofilms exposed to metals either in the laboratory or in the field (e.g. Fechner et al, 2012aFechner et al, , 2012b. However no such clear tendency was observed here over the four season experiment.…”
Section: Seasonal Variations Of Tolerance Measurementssupporting
confidence: 47%
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“…A decrease of this parameter had previously been observed as tolerance levels increased for biofilms exposed to metals either in the laboratory or in the field (e.g. Fechner et al, 2012aFechner et al, , 2012b. However no such clear tendency was observed here over the four season experiment.…”
Section: Seasonal Variations Of Tolerance Measurementssupporting
confidence: 47%
“…The presence of those hereby unmonitored micropollutants (both organic and metal) during biofilm growth could be one of the explanation of biofilms' sensitivity to the low metal pressure monitored even at both downstream sites. As a matter of fact, metal exposure levels for each metal at both downstream sites are between 3 and 50 times smaller than exposure levels used to generate PICT effects in our previous microcosm experiments (Fechner et al, 2012a(Fechner et al, , 2011.…”
Section: 2mentioning
confidence: 77%
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“…Induced tolerance is observed by comparing the sensitivity of natural communities to a particular contaminant or contaminant mixture (Kim-Tiam et al 2014), using short-term toxicity tests performed under controlled conditions. These tests are based on representative endpoints such as, photosynthetic efficiency (Dorigo et al 2010;Tlili et al 2010), respiration potential (Dorigo et al 2010;) enzymatic activities (Fechner et al 2012), and metabolic capacities (Boivin et al 2005). Different studies have thus highlighted an increased tolerance of microbial communities to various substances such as metals and metalloids, and organic pesticides following chronic exposure to these toxicants in various ecosystems (see for reviews Blanck 2002;Imfeld and Vuilleumier 2012;.…”
Section: Introductionmentioning
confidence: 99%
“…Community structure can also be assessed by identifying and enumerating taxa present on the CES. DNA-based molecular approaches are increasingly used to elucidate the composition of biofilm communities (Hoellein et al, 2010;Tlili et al, 2011;Fechner, Dufour & Gourlay-Franc e, 2012). Specific ecosystem functions (e.g.…”
Section: Endpointsmentioning
confidence: 99%