Journal Title
Title of Journal: Ecotoxicology
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Abbravation: Ecotoxicology
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Authors: Xiaoli Liu Cuiyun Yang Linbao Zhang Lianzhen Li Sujing Liu Junbao Yu Liping You Di Zhou Chuanhai Xia Jianmin Zhao Huifeng Wu
Publish Date: 2011/05/15
Volume: 20, Issue: 6, Pages: 1422-1431
Abstract
Cadmium is a nonessential element to living organisms and has become the severe contaminant in both seawater and sediment in the intertidal zones of the Bohai Sea The halophyte Suaeda salsa is the pioneer plant in the intertidal zones of Bohai Sea and has been widely applied in environmental sciences In this study the dose and timedependent effects induced by environmentally relevant concentrations 2 10 and 50 μg l−1 of cadmium were characterized in S salsa using NMRbased metabolomics The levels of amino acids valine leucine glutamate tyrosine etc carbohydrates glucose sucrose and fructose intermediates of tricarboxylic acid cycle succinate citrate etc and osmolyte betaine were altered in the S salsa samples after cadmium exposures These metabolic biomarkers indicated the elevated protein degradation and disturbances in the osmotic regulation and energy metabolism caused by cadmium in S salsa Overall our results demonstrated the applicability of NMRbased metabolomics for the detection of metabolic biomarkers that could be used for the interpretation of toxicological effects induced by contaminants in the pioneer plant S salsa in the intertidal zones In addition the metabolic biomarkers could be potentially useful for the biomonitoring of contaminants in the intertidal zonesWe thank Dr Mark Viant School of Bioscience The University of Birmingham for use of the software ProMetab This research was supported by the Project of National Science Technology Pillar Program in “12th Five Year” Period 2011BAC02B01 The 100 Talents Program of the Chinese Academy of Sciences Innovation Programs of the Chinese Academy of Sciences KZCX2YW223 and KZCX2YW225 and Technology Development Program Projects of Shandong Province 2008GG20005006 and 2008GG3NS0700 SDSFC ZR2009CZ008 and in part by the CAS/SAFEA International Partnership Program for Creative Research Teams and an open funding grant of Shandong Provincial Key Laboratory of Ecology and Environment in Yellow River Delta 2009KFJJ03
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