Nano-microplastic and agro-ecosystems: a mini-review

Front Plant Sci. 2023 Nov 20:14:1283852. doi: 10.3389/fpls.2023.1283852. eCollection 2023.

Abstract

Plastics' unavoidable and rampant usage causes their trash to be extensively dispersed in the atmosphere and land due to its numerous characteristics. Because of extensive plastic usage and increased manufacturing, there is insufficient recycling and a large accumulation of microplastics (MPs) in the environment. In addition to their wide availability in the soil and atmosphere, micro- and nanoplastics are becoming contaminants worldwide. Agro-ecosystem functioning and plant development are being negatively impacted in several ways by the contamination of the environment and farmland soils with MPs (<5 mm) and nanoplastics (<1 µm). The contributions of some recyclable organic waste and plastic film mulching and plastic particle deposition in agroecosystems may be substantial; therefore, it is crucial to understand any potentially hazardous or undesirable impacts of these pollutants on agroecosystems. The dissolution of bioplastics into micro- and nano-particles (MBPs and NBPs) has not been considered in recent studies, which focus primarily on agro-ecosystems. It is essential to properly understand the distribution, concentration, fate, and main source of MPs, NPS, MBPs, and NBPs in agroecosystems. Based on the limited findings, understanding the knowledge gap of environmental impact from micro and nanoplastic in farming systems does not equate to the absence of such evidence. It reveals the considerations for addressing the gaps to effectively protect global food safety and security in the near future.

Keywords: degradation of plastic; envirotoxicology; micro(nano)plastics; pollution; remediation; response of plants; soil contamination.

Publication types

  • Review

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This research was financially supported by the Guangxi Natural Science Foundation (2021GXNSFAA220022; 2023GXNSFAA026459; 2023GXNSFAA026460), Science and Technology Major Project of Guangxi (Guike AA22117002-1; AA22117004; 202303), Guangxi Innovation Teams of Modern Agriculture Technology (nycytxgxcxtd-2021-03), Guangxi Characteristic Crop Experimental Station (GTS2022022), National Key R & D Project (2022YFD2301102-07), The National Natural Science Foundation of China (31760415; 32060468), Fund of Guangxi Academy of Agricultural Sciences (2021YT011), Basic Scientific Research Fund of Guangxi Academy of Agricultural Sciences (Guike 2023YM55) and Guangxi Key Laboratory of Sugarcane Genetic Improvement Project (21-238-16-K-04-02).