Anatoxin-a elicits an increase in peroxidase and glutathione S-transferase activity in aquatic plants

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dc.contributor.author Mitrovic, Simon en_US
dc.contributor.author Pflugmacher, Stephan en_US
dc.contributor.author James, Kevin en_US
dc.contributor.author Furey, Ambrose en_US
dc.contributor.editor en_US
dc.date.accessioned 2012-02-02T08:09:39Z
dc.date.available 2012-02-02T08:09:39Z
dc.date.issued 2004 en_US
dc.identifier 2010001798 en_US
dc.identifier.citation Mitrovic Simon et al. 2004, 'Anatoxin-a elicits an increase in peroxidase and glutathione S-transferase activity in aquatic plants', Elsevier, vol. 68, no. 2, pp. 185-192. en_US
dc.identifier.issn 0166-445X en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/14964
dc.description.abstract Although the toxic effects of cyanotoxins on animals have been examined extensively, little research has focused on their effects on macrophytes and macroalgae. To date only microcystins have been found to be detrimental to aquatic plants. Peroxidase activity of the free floating aquatic plant Lemna minor and the filamentous macroalga Chladophora fracta was measured after exposure to several concentrations of the cyanotoxin, anatoxin-a. Peroxidase activity (POD) was significantly (P<0.05) increased after 4 days of exposure to an anatoxin-a concentration of 25 ?g mL-1 for both L. minor and C. fracta. Peroxidase activity was not significantly increased at test concentrations of 15 ?g mL-1 or lower. In another experiment, the effects of various concentrations of anatoxin-a on the detoxication enzyme, glutathione S-transferase (GST) in L. minor were investigated. GST activity was significantly elevated at anatoxin-a concentrations of 5 and 20 ?g mL-1. Photosynthetic oxygen production by L. minor was also found to be reduced at these concentrations. This is the first report to our knowledge of the cyanotoxin anatoxin-a being harmful to aquatic plants. en_US
dc.language en_US
dc.publisher Elsevier en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/S0166-445X(04)00103-1 en_US
dc.title Anatoxin-a elicits an increase in peroxidase and glutathione S-transferase activity in aquatic plants en_US
dc.parent Aquatic Toxicology en_US
dc.journal.volume 68 en_US
dc.journal.number 2 en_US
dc.publocation USA en_US
dc.identifier.startpage 185 en_US
dc.identifier.endpage 192 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 060100 en_US
dc.personcode 944240 en_US
dc.personcode 0000068844 en_US
dc.personcode 0000068832 en_US
dc.personcode 0000068831 en_US
dc.percentage 100 en_US
dc.classification.name Biochemistry and Cell Biology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Cyanobacteria; Anatoxin-a; Toxicity; Aquatic plants; Lemna; Detoxication enzymes en_US


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