title: Copper toxicity in leaves of Elodea canadensis Michx.
abstract: Elodea canadensis (Canadian waterweed) has an ability to accumulate and bioconcentrate heavy metals. In this work, selected cellular responses for Cu treatment were studied in leaves of E. canadensis. Short term experiments, i.e. 1 week exposure to 0.5, 1, 5, and 10 microM of Cu indicated that concentrations up to 10 microM Cu causes a pronounced accumulation of photosynthetic pigments, a drastic degradation of soluble proteins with molecular weight above 18 kDa and a rapid accumulation of polypeptides with molecular weight below 14 kDa. The connection of these observations with copper detoxification mechanisms in aquatic macrophytes are discussed.
authors.affiliation: Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, ul. Gronostajowa 7, 30-387, Kraków, Poland.
authors.forename: Przemysław
authors.initials: P
authors.lastname: Malec
authors.forename: Maria
authors.initials: M
authors.lastname: Maleva
authors.forename: M N V
authors.initials: MN
authors.lastname: Prasad
authors.forename: Kazimierz
authors.initials: K
authors.lastname: Strzałka
mesh_terms: D003300:Copper / Q000633:toxicity*; D031321:Hydrocharitaceae / Q000187:drug effects* / Q000378:metabolism; D010788:Photosynthesis; D010860:Pigments, Biological / Q000378:metabolism; D010940:Plant Proteins / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D010860:Pigments, Biological; D010940:Plant Proteins; D014874:Water Pollutants, Chemical; D003300:Copper