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New Phytol

Title:		Influence of zinc hyperaccumulation on glucosinolates in Thlaspi caerulescens
Author(s):		Tolra RP; Poschenrieder C; Alonso R; Barcelo D; Barcelo J;
Address:		"Laboratorio de Fisiologia Vegetal, Facultad de Ciencias, Universidad Autonoma de Barcelona, E-08193 Bellaterra, Spain. Instituto Investigaciones Quimicas y Ambientales, CSIC Barcelona, C/Jordi Girona 18-26, E-08034 Barcelona, Spain"
Journal Title:		New Phytol
Year:		2001
Volume:		151
Issue:		3
Page Number:		621 - 626
DOI:		10.1046/j.0028-646x.2001.00221.x
ISSN/ISBN:		1469-8137 (Electronic) 0028-646X (Linking)
Abstract:		"* Previous investigations suggest that in species of the Brassicaceae hyperaccumulation of heavy metals might provide an ecological advantage by protecting the plants against herbivores and/or pathogens while lowering the glucosinolate content. Few analytical data on glucosinolate concentrations in hyperaccumulators are available for supporting this 'trade-off' hypothesis. * This is the first report on the influence of zinc (Zn) hyperaccumulation on the concentrations of individual glucosinolates in Thlaspi caerulescens exposed to different Zn concentrations. * The most abundant glucosinolate within both roots and shoots was p-hydroxybenzyl glucosinolate (sinalbin). Zn hyperaccumulation decreased sinalbin concentrations in shoots, whereas root concentrations increased with Zn accumulation. These changes in sinalbin concentrations were mainly responsible for Zn-induced alterations of total glucosinolate contents. Quantitatively less important was a Zn-induced decrease of indolylglucosinolates observed in both roots and shoots and that of 3-butenylglucosinolate found in roots. * The results presented here support the view of a trade-off between Zn and glucosinolates in shoots but not in roots of Thlaspi caerulescens"
Keywords:		Hyperaccumulation Thlaspi caerulescens glucosinolate sinalbin zinc;
Notes:		"PubMed-not-MEDLINETolra, Roser P Poschenrieder, Charlotte Alonso, Rosa Barcelo, Damia Barcelo, Juan eng England 2001/09/01 New Phytol. 2001 Sep; 151(3):621-626. doi: 10.1046/j.0028-646x.2001.00221.x"