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| Researchers review the mechanism of plant absorption and accumulation of toxic metal elements |
Recently, the team of Professor Fangjie Zhao from the School of Resources and Environmental Sciences of Nanjing Agricultural University published a special review article online in Molecular Plants, recounting the mechanism of plant absorption, accumulation and detoxification of harmful heavy metals/metalloids in recent years, and the improvement of agricultural products through crop improvement.
Security research progress
.
The soil contains a variety of heavy metals/metal-like elements, some of which are very toxic to organisms.
If they are absorbed into the food chain through crops, they can cause harm to human health.
Arsenic, cadmium, lead, and mercury are the most prominent risks to human health.
Elements
.
Due to human activities, soil pollution in some farmlands has further threatened the quality and safety of agricultural products
This review article first introduced the chemical forms and distribution of these toxic metal elements in agricultural products, especially rice.
Different chemical forms have very different toxicity to the human body
.
Next, we will introduce the molecular mechanism and regulation mechanism of plants to absorb and transport toxic metals.
The article introduces the natural variation and genetic mechanism of the absorption and accumulation of toxic metal elements in crops.
In recent years, some encouraging progress has been made in using excellent alleles to cultivate low-accumulation crop varieties
.
The article also introduced the potential of using phytoremediation to remediate contaminated soil, proposed a general equation for evaluating the efficiency of phytoremediation, and emphasized the importance of plants’ enrichment coefficients for toxic metal elements
Related paper information: https://doi.
https://doi.
org/10.
1016/j.
molp.
2021.
09.
016
