Field-selected cadmium tolerance in the springtail Orchesella cincta is correlated with increased metallothionein mRNA expression.


Populations of the springtail Orchesella cincta that live in metal contaminated soils have developed tolerance to cadmium by increased metal retention in the midgut epithelium and excretion at every moult. Regulation of the MT gene was studied in a tolerant population (Plombières, Belgium) and a laboratory culture. Animals were exposed to a range of… (More)