文献类型： 外文期刊
作者： Liu, Yujia 1 ; Li, Shuxin 1 ; Wang, Lichun 3 ; Zhang, Peng 1 ; Liu, Tianhao 1 ; Li, Xiangnan 1 ;
作者机构： 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, State Key Lab Black Soil Conservat & Utilizat, Changchun 130102, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jilin Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Crop Ecophysiol & Farming Syst Northeaster, Minist Agr & Rural Affair, Changchun 130033, Peoples R China
4.Chinese Acad Sci, Engn Lab Ecoagr Water Source Liaoheyuan, Changchun 130102, Peoples R China
关键词： Triticum aestivum L.; Global warming; Carbohydrate metabolism; Gas exchange; Plastic pollution
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）
ISSN： 0048-9697
年卷期： 2024 年 929 卷
页码：
收录情况： SCI
摘要： Despite the wide acknowledgment that plastic pollution and global warming have become serious agricultural concerns, their combined impact on crop growth remains poorly understood. Given the unabated megatrend, a simulated soil warming (SWT, +4 degrees C) microcosm experiment was carried out to provide a better understanding of the effects of temperature fluctuations on wheat seedlings exposed to nanoplastics (NPs, 1 g L -1 61.71 +/- 0.31 nm polystyrene). It was documented that SWT induced oxidative stress in wheat seedlings grown in NPscontaminated soil, with an 85.56 % increase in root activity, while decreasing plant height, fresh weight, and leaf area by 8.72 %, 47.68 %, and 15.04 % respectively. The SWT also resulted in reduced photosynthetic electron -transfer reaction and Calvin -Benson cycle in NPs -treated plants. Under NPs, SWT stimulated the tricarboxylic acid (TCA) metabolism and bio-oxidation process. The decrease in photosynthesis and the increase in respiration resulted in an 11.94 % decrease in net photosynthetic rate ( P n ). These results indicated the complicated interplay between climate change and nanoplastic pollution in crop growth and underscored the potential risk of nanoplastic pollution on crop production in the future climate.
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