Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
579223 | Journal of Hazardous Materials | 2011 | 9 Pages |
Abstract
⺠The protist Euglena gracilis has the ability to accumulate large amounts of chromium, particularly Cr(III). ⺠The Cr(III) toxicity depends on the medium composition, becoming high in the absence of carboxylic acids. ⺠There are increased activities of both particulate and soluble chromate reductase activities in response to the oxidative stress induced by Cr(VI) or Cr(III). ⺠Large secretion of malate, as well as enhanced intracellular contents of ascorbate and thiol-molecules are also part of the chromium resistance mechanisms in this protist.
Keywords
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Authors
Elizabeth Lira-Silva, Itzumi S. RamÃrez-Lima, Viridiana OlÃn-Sandoval, Jorge D. GarcÃa-GarcÃa, Rodolfo GarcÃa-Contreras, Rafael Moreno-Sánchez, Ricardo Jasso-Chávez,