title: Correlations in metal release profiles following sorption by Lemna minor.
abstract: Following the rapid uptake of contaminants in the first few hours of exposure, plants typically attempt to cope with the toxic burden by releasing part of the sorbed material back into the environment. The present study investigates the general trends in the release profiles of different metal(loid)s in the aquatic macrophyte Lemna minor and details the correlations that exist between the release of metal(loid) species. Water samples with distinct contamination profiles were taken from Nilüfer River (Bursa, Turkey), Yeniçağa Lake (Bolu, Turkey), and Beyşehir Lake (Konya, Turkey) and used for release studies; 36 samples were tested in total. Accumulation and release profiles were monitored over five days for 11 metals and a metalloid ((208)Pb, (111)Cd, (52)Cr,(53)Cr,(60)Ni,(63)Cu,(65)Cu,(75)As,(55)Mn, (137)Ba, (27)Al, (57)Fe, (66)Zn,(68)Zn) and correlation, cluster and principal component analyses were employed to determine the factors that affect the release of these elements. Release profiles of the tested metal(loid)s were largely observed to be distinct; however, strong correlations have been observed between certain metal pairs (Cr/Ni, Cr/Cu, Zn/Ni) and principal component analysis was able to separate the metal(loid)s into three well-resolved groups based on their release.
authors.affiliation: a Ankara University, Department of Biology, Faculty of Science , Ankara , Turkey.
authors.forename: Esra
authors.initials: E
authors.lastname: Üçüncü Tunca
authors.affiliation: b Bilkent University, UNAM-Institute of Materials Science and Nanotechnology , Turkey.
authors.forename: Tolga T
authors.initials: TT
authors.lastname: Ölmez
authors.affiliation: b Bilkent University, UNAM-Institute of Materials Science and Nanotechnology , Turkey.
authors.forename: Alper D
authors.initials: AD
authors.lastname: Özkan
authors.affiliation: a Ankara University, Department of Biology, Faculty of Science , Ankara , Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Altındağ
authors.affiliation: c Ordu University, Faculty of Marine Sciences , Fatsa , Ordu , Turkey.
authors.forename: Evren
authors.initials: E
authors.lastname: Tunca
authors.affiliation: d Gazi University, Department of Medical Biology and Genetics, Faculty of Medicine , Ankara , Turkey.|e Gazi University, Life Sciences Application and Research Center , Ankara , Turkey.
authors.forename: Turgay
authors.initials: T
authors.lastname: Tekinay
mesh_terms: D029064:Araceae / Q000378:metabolism*; D001673:Biodegradation, Environmental; D005618:Fresh Water; D008670:Metals / Q000378:metabolism*; D014421:Turkey; D014873:Water Pollutants / Q000378:metabolism*
chemical_list: D008670:Metals; D014873:Water Pollutants
keywords: CA; PCA; bioremediation; correlation; duckweed; pyhtoremediation; release; removal