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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: The metal tolerance profile of Thlaspi goesingense is mimicked in Arabidopsis thaliana heterologously expressing serine acetyl-transferase | BMC Plant Biology BioMed Central Research article The metal tolerance profile of Thlaspi goesingense is mimicked in Arabidopsis thaliana heterologously expressing serine acetyl-transferase John L Freeman 1 2 and David E Salt1 Address 1Center for Plant Environmental Stress Physiology Purdue University Horticulture and Landscape Architecture Department. West Lafayette Indiana 47907 USA and 2Biology Department Colorado State University Program in Molecular Plant Biology Fort Collins Colorado 80523 USA Email John L Freeman - John.Freeman@ColoState.edu David E Salt - DSalt@Purdue.edu Corresponding author Open Access Published 28 November 2007 Received 6 February 2007 AAA-7 - -A J.i.inuoz mi AAAO-7ZA Accepted 28 November 2007 BMC Plant Biology 2007 7 63 doi 10.1186 1471-2229-7-63 This article is available from http www.biomedcentral.com 1471-2229 7 63 2007 Freeman and Salt licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background The Ni hyperaccumulator Thlaspi goesingense is tolerant to Ni Zn Co and slightly resistant to Cd. We previously observed that elevated glutathione driven by constitutive activation of serine acetyltransferase SAT plays a role in the Ni tolerance of T. goesingense. Results Here we show that the elevated shoot concentration of glutathione previously shown to cause elevated Ni tolerance in Arabidopsis thaliana heterologously expressing T. goesingense mitochondrial serine acetyltransferase SATm also causes tolerance to Co and Zn while slightly enhancing resistance to Cd. The level of tolerance afforded to each metal is ranked Ni Co Zn Cd. The Ni Co Zn tolerances are positively correlated with both the accumulation of glutathione GSH and the ability to resist the oxidative damage induced by these .
