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| Effects of different types of microplastics on physiology and metabolism of Scutellaria baicalensis |
| Received:October 28, 2024 |
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| KeyWord:microplastics;Scutellaria baicalensis;physiological response;oxidative stress;metabolites |
| Author Name | Affiliation | E-mail | | GAO Yanan | Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China | | | WANG Lunyan | Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China | | | LI Xinyu | Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China | | | JIA Xiangqian | Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
Post-Doctoral Scientific Research Workstation of Heilongjiang Boli Economic Development Zone Management Committee, Boli 154500, China | | | ZHANG Yanlong | Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
Post-Doctoral Scientific Research Workstation of Heilongjiang Boli Economic Development Zone Management Committee, Boli 154500, China | ylzhanghd@163.com | | LIU Yang | Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
Post-Doctoral Scientific Research Workstation of Heilongjiang Boli Economic Development Zone Management Committee, Boli 154500, China | 2021103@hlju.edu.cn |
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| Abstract: |
| To analyze the effects of microplastics on the growth of Scutellaria baicalensis plants, a traditional Chinese medicine, and their toxicological responses. The effects of adding microplastics of polystyrene microplastics（PS-MPs）, polyethylene microplastics（PE-MPs） and polypropylene microplastics（PP-MPs）with a concentration of 500 mg · L-1 and a particle size of about 10 μm on the growth and antioxidant enzyme activities of S. baicalensis plants were examined in nutrient solution cultures and the toxic effects of the different microplastics on the S. baicalensis plants were further investigated. The toxic effects of different types of microplastics on S. baicalensis plants were further investigated. The results showed that the effect of PE-MPs on the growth of S. baicalensis was relatively small, while the effects of PS-MPs and PP-MPs were more significant. In terms of photosynthetic pigment content, PS-MPs led to a significant decrease. At the antioxidant enzyme activity level, PS-MPs and PE-MPs treatments significantly increased, while PP-MPs treatment had less effect. At the metabolic level, PS-MPs and PP-MPs microplastics had significant effects, mainly affecting the pathways of galactose metabolism, glycine, serine, and threonine metabolism, whereas PE-MPs mainly affected sugar metabolism and TCA cycle. In addition, PP-MPs had the most significant effect on baicalein and baicalein in S. baicalensis roots, and relatively little effect on baicalein and baicalin. The results indicate that the impacts of various types of microplastics on the growth and metabolism of S. baicalensis differ, with PS-MPs and PP-MPs primarily influencing the growth of S. baicalensis plants, while PE-MPs exert a relatively minor effect. PE-MPs predominantly impact the sugar metabolism and the TCA cycle in S. baicalensis plants, while PS-MPs and PP-MPs predominantly affect the TCA cycle, galactose metabolism, as well as the metabolism of glycine, serine, and threonine. Additionally, they influence the content of major compounds within S. baicalensis plants. |
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