The impact of copper oxide nanoparticles on plant growth: a comprehensive review

ABSTRACT

Copper oxide nanoparticles (CuO NPs) are a type of nanomaterial with unique physical and chemical properties that make them useful in various applications. CuO NPs have been studied for their potential agricultural applications, where they can have both positive and negative effects on plants, depending on factors such as concentration and duration of exposure. CuO NPs have been shown to improve plant growth and development by enhancing photosynthesis, nutrient uptake, and root growth. However, high concentrations of CuO NPs can cause oxidative stress and damage to plant cells, resulting in reduced growth and yield. Furthermore, these NPs can be taken up by plants and accumulate in various plant tissues, raising concerns about their potential impact on human health if ingested via the food chain. Further research is needed to determine the safe and effective application method and optimal concentration of CuO NPs in agriculture.

Highlights

• CuO NPs can benefit or harm plants, based on concentration and exposure time.

• Monocots are more negatively affected by CuO NPs, dicots show diverse response.

• CuO NPs impact plants based on species, concentration, and application.

• More research needed to understand CuO NPs’ impact on plant growth and health.

GRAPHICAL ABSTRACT

KEYWORDS:

• Copper oxide
• nanoparticles
• plants

Acknowledgements

This work was supported by the National Research, Development and Innovation Office (NKFIH PD 131589). Open Access has been made possible by the University of Szeged Open Access Fund (grant number 6245).

Icons in the Graphical abstract by dDara, Freepik, zky.icon.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by National Research, Development and Innovation Office: [Grant Number NKFIH PD 131589]; University of Szeged Open Access Fund: [Grant Number grant number 6245].

Notes on contributors

Gábor Feigl

Gábor Feigl obtained his Ph.D. degree in 2015, with a thesis focusing on the response of crucifers to heavy metal stress. Currently, he is dedicated to researching the effects of anthropogenic stressors, such as nanoparticles and plastics, on plants. He serves as the leader of the Environmental Plant Biology and Protein Biochemistry Group at the Department of Plant Biology, University of Szeged, Hungary.