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

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Show simple item record Mitrovic, S Pflugmacher, S James, KJ Furey, A 2012-02-02T08:09:39Z 2004-01
dc.identifier.citation Aquatic Toxicology, 2004, 68 (2), pp. 185 - 192
dc.identifier.issn 0166-445X
dc.identifier.other C1UNSUBMIT en_US
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 µg mL-1 for both L. minor and C. fracta. Peroxidase activity was not significantly increased at test concentrations of 15 µg 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 µg 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.
dc.format Scott McWhirter
dc.publisher Elsevier
dc.relation.isbasedon 10.1016/S0166-445X(04)00103-1
dc.title Anatoxin-a elicits an increase in peroxidase and glutathione S-transferase activity in aquatic plants
dc.type Journal Article
dc.parent Aquatic Toxicology
dc.journal.volume 2
dc.journal.volume 68
dc.journal.number 2 en_US
dc.publocation USA en_US
dc.identifier.startpage 185 en_US
dc.identifier.endpage 192 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0601 Biochemistry and Cell Biology
dc.personcode 944240
dc.percentage 100 en_US Biochemistry and Cell Biology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords Cyanobacteria
dc.description.keywords Anatoxin-a
dc.description.keywords Toxicity
dc.description.keywords Aquatic plants
dc.description.keywords Lemna
dc.description.keywords Detoxication enzymes
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Environmental Science
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc false
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history Closed (ID: 3)

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