Chinese Bulletin of Botany ›› 2016, Vol. 51 ›› Issue (6): 849-858.DOI: 10.11983/CBB15149

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Structure and Function of Copper Transporters in Plants

Jinhong Yuan1,2, Jingrui Li2,3, Haiyan Zhang1,2*   

  1. 1College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
    2Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
    3School of Life Sciences, Shanxi Normal University, Linfen 041000, China
  • Received:2015-08-14 Accepted:2016-02-01 Online:2016-11-01 Published:2016-12-02
  • Contact: Zhang Haiyan
  • About author:

    # Co-first authors

Abstract:

Copper (Cu) is an essential micronutrient involved in many physiological and biochemical reactions in growth and development in plants. Cu deficiency or excess can affect plant metabolism. Therefore, a series of Cu transporters are needed to act synergistically to sustain Cu homeostasis in plants. Plant Cu transporters can be classified into 2 general classes — Cu-uptake transporters (e.g., COPT, ZIP and YSL protein families) and Cu-efflux transporters (e.g., HMA protein family) — responsible for membrane transport of Cu and mediating Cu uptake and efflux. Recent studies have shown that some Cu chaperone protein families may be evolved from Cu transporter protein families, and Cu chaperones play an important role in maintaining Cu homeostasis. Here, we review developments in the expression, structure, location and function of Cu transporters as well as Cu chaperones.