Differences in uptake and translocation of selenate and selenite by the weeping willow and hybrid willow.

Environmental Science and Pollution Research International
Xiao-Zhang Yu, Ji-Dong Gu

Abstract

Due to its essentiality, deficiency, and toxicity to living organisms and the extensive use in industrial activities, selenium (Se) has become an element of global environmental and health concern. Se removal from contaminated sites using physical, chemical, and engineering techniques is quite complicated and expensive. The goal of this study was to investigate uptake and translocation of Se in willows and to provide quantitative information for field application whether Se phytoremediation is feasible and ecologically safe. Intact pre-rooted plants of hybrid willows (Salix matsudana Koidz x alba L.) and weeping willows (Salix babylonica L.) were grown hydroponically and treated with selenite or selenate at 24.0 +/- 1 degrees C for 144 h. Removal of leaves was also performed as a treatment to quantify the effect of transpiration on translocation and volatilization of Se. At the end of the study, total Se in the hydroponic solution and in different parts of plant tissues was analyzed quantitatively by hydride generation-atomic fluorescence spectrometry. The capacity of willows to assimilate both chemical forms of Se was also evaluated using detached leaves and roots in sealed glass vessels in vivo. Translocation efficiency of Se...Continue Reading

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Dec 8, 2007·Environmental Science and Pollution Research International·Xiao-Zhang Yu, Ji-Dong Gu

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Citations

May 26, 2009·Environmental Science and Pollution Research International·Xiao-Zhang Yu, Ji-Dong Gu
May 19, 2009·BMC Plant Biology·Dása UmysováVilém Zachleder
Sep 12, 2014·Plant Physiology and Biochemistry : PPB·B GuerreroM Valiente
Jan 6, 2018·Critical Reviews in Biotechnology·Shrutika L WadgaonkarPiet N L Lens
Jun 19, 2017·Environmental Science and Pollution Research International·Lauge Peter Westergaard Clausen, Stefan Trapp
Feb 8, 2019·Environmental Science and Pollution Research International·Mengke WangDongli Liang
May 19, 2019·Environmental Science and Pollution Research International·Mengke WangDongli Liang

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