Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (24): 63-69.doi: 10.11924/j.issn.1000-6850.casb2022-0231

Special Issue: 生物技术 土壤重金属污染

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Migration Pathways of Heavy Metals in Plants and Influencing Factors: Research Progress

LIAO Yumeng1(), LI Zuran2, ZU Yanqun1(), LIU Caixin1   

  1. 1College of Resources and Environment, Yunnan Agricultural University, Kunming 650201
    2College of Horticulture and Landscape, Yunnan Agricultural University, Kunming 650201
  • Received:2022-04-01 Revised:2022-05-24 Online:2022-08-25 Published:2022-08-22
  • Contact: ZU Yanqun E-mail:1533216150@qq.com;649332092@qq.com

Abstract:

After absorbed by plants, the heavy metals from soil will accumulate in different parts of the plant through lateral and vertical migration. The lateral migration includes the pathways of symplast and apoplast. The vertical migration includes the pathways of xylem and phloem. The factors affecting the migration of cadmium, lead and zinc in plants include barrier structure, transport, physiological metabolites and energy supply. The study of the migration characteristics of heavy metals in plants provides a certain basis for the phytoremediation of soil polluted by heavy metals and the safe utilization of agricultural soil.

Key words: heavy metal, lateral migration, xylem loading, vertical migration, influencing factors

CLC Number: