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《Acta Botanica Boreali-occidentalia Sinica》 2003-11
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Advances in research of mechanisms of heavy metal hyperaccumulation in plants

LANG Ming-lin~1,3,ZHANG Yu-xiu~2,CHAI Tuan-yao~1(1 Department of Biology,Graduate School of Chinese Academy of Sciences,Beijing 100039,China;2 College of Chemical and Enevironmental Engineering,China University of Mining and Technology,Beijing 100083,China;3 College of Life Science,Hebei Agricultural University,Baoding,Hebei 071000,China)  
The mechanism of heavy metal hyperaccumulation were very complicated and involved various metabolic processes in plants.The recent studies showed that the high ability of metal ion uptaking and trafficking,compartmentalization in vacuole,cell wall or trichome,and the chelation with organic acid (such as citrate,malate and oxalate) or amino acid (histidine) were involved in the metal accumulation and tolerance mechanism in hyperaccumulation.In addition,several metal cation transmembrane transporter genes were cloned and characterized in hyperaccumulator,which belong to the CDF family,or NRAMP family and/or ZIP family.The overexpression of the metal ion transporter genes play important roles not only in heavy metal uptaking,trafficking,distribution and accumulation in the cell,but also in increase the heavy metal tolerance of hyperaccumulator.
【Fund】: 国家自然科学基金资助项目(39870078;39970070);; 中国科学院生命科学创新青年科学家小组经费资助项目;; 国家转基因植物研究专项经费资助项目(J00-A-00803;JYO3A1902)
【CateGory Index】: Q947
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【Co-citations】
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1 Zhu Feng-lian1 et al.(1 Institute of Resource,Environment and Information Technology,Anhui Agricultural University,Hefei,Anhui,230036;2 Institute of Soil Science,Chinese Academy of Sciences,Nanjing,China 210008);Analysis on Present situation of Pollution and utilization of Animal excrement in China[J];Anhui Agricultural Science Bulletin;2008-13
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【Secondary References】
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