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Review of the Toxic Effects of Cadmium on Plants and Their Tolerant Mechanism

XIONG Yu-hui et al (School of Biological Science,Huzhou Teachers College,Huzhou,Zhejiang 313000)  
In this paper some results of studies on the mechanisms responsible for physiological and biochemical reactions in plants under cadmium stress were reviewed.A number of toxic effects of Cd on plants was discussed,including of inhibition of growth and cell fission,spoiling cellular structure and photosynthesis system as well as enzyme activities.Moreover,Cd tolerance of plants was summarized as limiting Cd absorption,fixation by cell wall,compartmentation in vacuole,activation of antioxidative enzymes and synthesis chelated-peptide.
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