Application of Nanoparticles Alleviates Heavy Metals Stress and Promotes Plant Growth: An Overview

We explore the current status of the literature regarding nano-enabled agriculture retrieved from the Web of Science databases and published from January 2010 to November 2020, with most of our sources spanning the past five years

Pingfan Zhou; Muhammad Adeel; Noman Shakoor; Manlin Guo; Yi Hao; Imran Azeem; Mingshu Li; Mengyuan Liu; Yukui Rui

2020

Scholarcy highlights

  • Rapid urbanization and industrialization, constant application of agrochemicals and fertilizers, unreasonable mining and waste management have caused heavy metalcontamination to become an increasingly prominent issue
  • The clustering of keywords indicates some research topics, which can help us understand the structure of this field
  • This review summarized the research progress in applying various NPs through seed priming, soil application, foliar spraying, and solution application to improve plant HM
  • The morphology, physiology and biochemistry of plants are significantly affected by HM stress
  • Crucial strategies to improve plant HM resistance include reducing the concentration of bioavailable HM in the soil, regulating the expression of HM transport genes in plants, improving the ability of the apoplastic barrier to intercept HM, providing more nutrition to plant, enhancing the ability of plant antioxidant systems, improving the function of organs and enhancing the production of structural protective agents
  • We summarized the effect of different NPs on the plants under Cd stress and a schematic diagram of possible mechanisms of NPs to alleviate the HM stress in roots and cells
  • With experimental data accumulation and the development of technology, it is believed that various physiological parameters of plants and the content of heavy metal in plants can be predicted based on the property of the soil, the variety of plants, and the property of NPs. It is possible to select appropriate types and concentrations of NPs for application, which would reduce unnecessary costs and maximize the beneficial effect

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