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Differential Effect of Metals/metalloids on the Growth and Element Uptake of Mesquite Plants Obtained from Plants Grown at a Copper Mine Tailing and Commercial Seeds by N. Haque; J.R. Peralta-Videa; M. Duarte-Gardea; J.L. Gardea-Torresdey is a Engineering article available to read on EtoBox.

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The selection of appropriate seeds is essential for the success of phytoremediation/restoration projects. In this research, the growth and elements uptake by the offspring of mesquite plants (Prosopis sp.) grown in a copper mine tailing (site seeds, SS) and plants derived from vendor seeds (VS) was investigated. Plants were grown in a modified Hoagland solution containing a mixture of Cu, Mo, Zn, As(III) and Cr(VI) at 0, 1, 5 and 10 mg L À1 each. After one week, plants were harvested and the concentration of elements was determined by using ICP-OES. At 1 mg L À1 , plants originated from SS grew faster and longer than control plants (0 mg L À1 ); whereas plants grown from VS had opposite response. At 5 mg L À1 , 50% of the plants grown from VS did not survive, while plants grown from SS had no toxicity effects on growth. Finally, plants grown from VS did not survive at 10 mg L À1 treatment, whilst 50% of the plants grown from SS survived. The ICP-OES data demonstrated that at 1 mg L À1 the concentration of all elements in SS plants was significantly higher compared to control plants and VS plants. While at 5 mg L À1 , the shoots of SS plants had significantly more Cu, Mo, As, and Cr

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Author

N. Haque; J.R. Peralta-Videa; M. Duarte-Gardea; J.L. Gardea-Torresdey

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0960-8524)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)