Journal
PLANTS-BASEL
Volume 9, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/plants9010100
Keywords
heavy metal; reactive oxygen species; oxidative burst; antioxidants
Categories
Funding
- National Key Research and Development Program of China [2018YFD1000600, 2018YFD1000604]
- Key Project of Zhejiang Provincial Natural Science Foundation [LZ18C160001]
- National Natural Science Foundation of China [31,901,346, 31,971,695, 31,470,683, 31,270,716, 31,070,604]
- Independent Research Project of State Key Laboratory of Subtropical Silviculture, Zhejiang AF University [ZY20180208, ZY20180308]
- Open Foundation of State Key Laboratory of Subtropical Silviculture, Zhejiang AF University [KF201708]
- Overseas Expertise Introduction Project for Discipline Innovation (111 Project) [D18008]
- Key Research and Development Program of Zhejiang Province [2018C02004]
- National High Technology Research and Development Program of China (863 Program) [2013AA102605]
- Fruit Innovation Team Project of Zhejiang Province [2016C02052-12]
- Key Agricultural New Varieties Breeding Projects by Zhejiang Province Science and Technology Department [2016C02052-13]
- Zhejiang Provincial Natural Science Foundation for Distinguished Young Scholar [LR13C160001]
- Open Foundation of First-class Discipline of Forestry, Zhejiang Province [201703]
- China Postdoctoral Science Foundation [2017M610377]
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Chromium (Cr) is an element naturally occurring in rocky soils and volcanic dust. It has been classified as a carcinogen agent according to the International Agency for Research on Cancer. Therefore, this metal needs an accurate understanding and thorough investigation in soil-plant systems. Due to its high solubility, Cr (VI) is regarded as a hazardous ion, which contaminates groundwater and can be transferred through the food chain. Cr also negatively impacts the growth of plants by impairing their essential metabolic processes. The toxic effects of Cr are correlated with the generation of reactive oxygen species (ROS), which cause oxidative stress in plants. The current review summarizes the understanding of Cr toxicity in plants via discussing the possible mechanisms involved in its uptake, translocation and sub-cellular distribution, along with its interference with the other plant metabolic processes such as chlorophyll biosynthesis, photosynthesis and plant defensive system.
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