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Bulletin of Botanical Research ›› 2021, Vol. 41 ›› Issue (6): 982-992.doi: 10.7525/j.issn.1673-5102.2021.06.017

• Research Report • Previous Articles     Next Articles

Difference of Tolerance to Heavy Metal Zinc Stress of Five Sedum Plants

Ying WANG1, Hong-Bo XU1, Yang WANG1, Meng-Qian WANG1, Cheng-Zhong WANG1, Yuan-Sen YIN1, Xue SUN1, Hui ZHOU1, Li-Huan ZHUO2()   

  1. 1.Suzhou Polytechnic Institute of Agriculture,Suzhou 215000
    2.Shanghai Donghai Vocational and Technical College,Shanghai 200000
  • Received:2020-11-13 Online:2021-11-20 Published:2021-10-29
  • Contact: Li-Huan ZHUO E-mail:1010@esu.edu.cn
  • About author:WANG Ying(1983—),femal,doctor degree,mainly engaged in plant physiological and ecological research.
  • Supported by:
    Special fund for basic scientific research operation Fee of Central University(2017-KYYWF-0138);General item of innovation training for college students in Jiangsu Province(202012808002Y);Special fund for doctor promotion program of Suzhou Polytechnic Institute of Agriculture(BS2001);Special fund for the construction of modern agricultural industrial technology system in Jiangsu Province(JATS[2019]362);Youth Promotion Project of Suzhou Polytechnic Institute of Agriculture(QN2002)


For the pollution of farmland around zinc mines was seriours in China, so an ideal method to screen plant materials with strong resistance to zinc was needed. 5 Sedum plants including Sedum spectabileS. aizoonS. hybridumS. lydium and S. spurium ‘Coccineum were used as materials and potted planting, the different concentrations of exogenous zinc(0,80,160,320,800,1600,2 000 mg·kg-1) added on the plants growth(biomass and plants height ) and the tolerance of to heavy metal zinc stress of plants was compared and analyzed respectively. The results showed that:The biomass and height of 5 Sedum plants increased first and then decreased with the concentration of heavy metal zinc increased and the growth of plants was inhibited, of which Sedum aizoon and Sedum lydium suffered more severe from zinc toxicity; The maximum growth of 5 Sedum plants appeared in different zinc concentrations, and the increase rate becoming negative appeared in different zinc concentrations either; The R2 values in linear analysis of growth and zinc stress of 5 Sedum plants were better, coefficient of regression equation could explain the promotion and inhibition rate of biomass and plant height of 5 Sedum plants, in terms of biomass, the growth promotion rate of S. spurium ‘Coccineum’ was largest, inhibition rate of S. hybridum was largest, and in terms of plant height, the growth promotion and inhibition rate of S. spectabile was largest.

Key words: zinc stress, Sedum, biomass, height of plant, differences

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