Heavy metal pollution has become a global environmental problem. Hyperaccumulator plants are of great research value because of their wide application prospects in the remediation of heavy metal pollution in soil, and they also serve as good models for studying the adaptation and evolution of plants in extreme environments. Good progresses have been made on understanding mechanisms of heavy metal hyperaccumulation in plants, but there are still many disputes in the following aspects: 1. Definition of hyperaccumulator plants; 2. The relationship...
