title: Exogenous salicylate application affects the lead and copper accumulation characteristics of Lemna gibba L.
abstract: Previous studies have shown that salicylates can change the ion permeability of root cells. Therefore the possible effects of exogenous salicylate application on lead (Pb) and copper (Cu) accumulation and its protective role against DNA damage due to metal exposure in Lemna gibba were studied. L. gibba was exposed to 5, 10, and 25 microM Pb and Cu for six days in the presence and absence of sodium salicylate (SA) (0.1, 0.5, and 1 mM). At all concentrations tested, SA application decreased Pb accumulation. On the other hand, application of 0.5 mM SA increased Cu accumulation. SA did not reduce DNA damage resulting from Pb and Cu toxicity. In summary, SA may be useful for reducing Pb accumulation, and application of SA at 0.5 mM may be useful for the phytoextraction of Cu.
authors.affiliation: Erciyes University, Faculty of Sciences, Department of Biology, 38039 Kayseri, Turkey. fduman@erciyes.edu.tr
authors.forename: Fatih
authors.initials: F
authors.lastname: Duman
authors.forename: Ahmet
authors.initials: A
authors.lastname: Aksoy
authors.forename: Fatma
authors.initials: F
authors.lastname: Ozturk
authors.forename: Ahmet
authors.initials: A
authors.lastname: Ceylan
mesh_terms: D001483:Base Sequence; D003300:Copper / Q000378:metabolism*; D004249:DNA Damage; D017931:DNA Primers; D007854:Lead / Q000378:metabolism*; D010944:Plants / Q000378:metabolism*; D016133:Polymerase Chain Reaction; D020156:Salicylic Acid / Q000494:pharmacology*
chemical_list: D017931:DNA Primers; D007854:Lead; D003300:Copper; D020156:Salicylic Acid