

Rapid industrialization, urbanization, and mine tailings runoff are the main sources of heavy metal contamination of agricultural land, which has become one of the major constraints to crop growth and productivity. Finding appropriate solutions to protect plants and agricultural land from heavy metal pollution/harmful effects is important for sustainable development. Phytoremediation and plant growth-promoting rhizobacteria (PGPR) are promising methods for this purpose, which both heavily rely on an appropriate understanding of the anatomical structure of plants. Specialized anatomical features, such as those of epidermis and endodermis and changes in the root vascular tissue, are often associated with heavy metal tolerance in legumes. This review emphasizes the uptake and transport of heavy metals by legume plants that can be used to enhance soil detoxification by phytoremediation processes. Moreover, the review also focuses on the role of rhizospheric organisms in the facilitation of heavy metal uptake, the various mechanisms of enhancing the availability of heavy metals in the rhizosphere, the genetic diversity, and the microbial genera involved in these processes. The information presented here can be exploited for improving the growth and productivity of legume plants in metal-prone soils. © 2022 by the authors.
| Funding sponsor | Funding number | Acronym |
|---|---|---|
| 2021–2023 | ||
| Ministry of Science and Technology of the People's Republic of China | MOST | |
| Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja | MPNTR |
This work is partially supported by the Sino-Serbian exchange project (2021–2023 to Pei Xu and Lana Zoric) funded by the Ministry of Science and Technology, Republic of China and the Ministry of Education, Science and Technological Development, Republic of Serbia and the fund of Hubei Engineering Research Center for Protection and Utilization of Special Biological Resources in the Hanjiang River Basin (Grant No. 2021–2023).
Xu, P.; College of Life Sciences, China Jiliang University, Hangzhou, China;
© Copyright 2022 Elsevier B.V., All rights reserved.