Spatial distribution of cadmium in leaves of metal hyperaccumulating Thlaspi praecox using micro-PIXE

* Localization of cadmium (Cd) and other elements was studied in the leaves of the field-collected cadmium/zinc (Cd/Zn) hyperaccumulator Thlaspi praecox from an area polluted with heavy metals near a lead mine and smelter in Slovenia, using micro-PIXE (proton-induced X-ray emission). * The samples w...

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Veröffentlicht in:The New phytologist. - 1979. - 179(2008), 3 vom: 01., Seite 712-721
1. Verfasser: Vogel-Mikuš, Katarina (VerfasserIn)
Weitere Verfasser: Regvar, Marjana, Mesjasz-Przybyłowicz, Jolanta, Przybyłowicz, Wojciech J, Simčič, Jure, Pelicon, Primož, Budnar, Miloš
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Environmental Pollutants Cadmium 00BH33GNGH Lead 2P299V784P
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520 |a * Localization of cadmium (Cd) and other elements was studied in the leaves of the field-collected cadmium/zinc (Cd/Zn) hyperaccumulator Thlaspi praecox from an area polluted with heavy metals near a lead mine and smelter in Slovenia, using micro-PIXE (proton-induced X-ray emission). * The samples were prepared using cryofixation. Quantitative elemental maps and average concentrations in whole-leaf cross-sections and selected tissues were obtained. * Cd was preferentially localized in the lower epidermis (820 microg g(-1) DW), vascular bundles and upper epidermis, whereas about twice the lower concentrations were found in the mesophyll. * Taking into account the large volume of the mesophyll compared with the epidermis, the mesophyll is indicated as a relatively large pool of Cd, possibly involved in Cd detoxification/dilution at the tissue and cellular level 
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700 1 |a Simčič, Jure  |e verfasserin  |4 aut 
700 1 |a Pelicon, Primož  |e verfasserin  |4 aut 
700 1 |a Budnar, Miloš  |e verfasserin  |4 aut 
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