1. Accumulation characteristics of liquid crystal monomers in plants: A multidimensional analysis.
- Author
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He, Wei, Cui, Yuhan, Li, Yunxiang, Yang, Hao, Liu, Zeyang, Zhang, Meng, and Li, Yu
- Subjects
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LIQUID crystals , *LIQUID crystal displays , *PLANT lipids , *MONOMERS , *MOLECULAR dynamics - Abstract
Liquid crystal monomers (LCMs), identified as emerging contaminations, have been detected in soils and plants, but their accumulation characteristics in plants haven't been studied. Therefore, this study systematically investigated the accumulation characteristics of LCMs in plants from four dimensions (i.e., plant fruit species, soil types, plant growth stages, and LCMs categories) for the first time. The LCMs concentrations (9.96 × 10−4 to 114.608 ng/g) in 22 plant fruits were predicted by the partition-limited model. Grains with the highest lipid content showed the highest LCMs accumulation propensity. Plants grown in paddy soil showed a strong LCMs accumulation capacity. Results showed that the LCMs accumulation capacity in plants from soils decreased when the soil organic matter content increased. A preferential accumulation of LCMs in plant root systems during growth was found by the molecular dynamics simulations. Compared to polychlorinated biphenyls (as the reference contaminants of LCMs), LCMs exhibit higher accumulation in plant roots and lower translocation to shoots. For the fourth dimension, lipophilicity was found to be the main reason of LCMs accumulation by intergraded stepwise linear regression with sensitivity analysis. This is the inaugural research concentrating on LCMs accumulation in plants, providing insights and theoretical guidance for future LCMs management strategies multidimensionally. Liquid crystal monomers (LCMs) are one of the essential materials for liquid crystal displays and have been identified as emerging containments, with detections now confirmed in soils and plants. However, the mechanism of their bioaccumulation in plants has not been established. Consequently, this paper presents the first comprehensive study on LCMs accumulation mechanisms in plants, identifying the patterns of LCMs accumulation in plants from various dimensions such as different plant species, soil types, plant growth stages, and LCMs categories, enhancing the understanding of the environmental behavior of LCMs and providing a theoretical reference for the formulation of LCMs management strategies. [Display omitted] • The first study focuses on the accumulation characteristics of LCMs in plants. • Plants with higher lipid contents may lead to higher accumulation of LCMs. • The higher the SOM content in the soil, the lower the LCMs uptake rate by plants. • LCMs exhibit a higher accumulation propensity in plant roots than that in shoots. • LCMs' lipophilicity contributes the most to the accumulation capacity in plants. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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