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Microplastics affect soil bacterial community assembly more by their shapes rather than the concentrations.
Wang, Peng-Yang; Zhao, Ze-Ying; Xiong, Xiao-Bin; Wang, Ning; Zhou, Rui; Zhang, Zhi-Ming; Ding, Fan; Hao, Meng; Wang, Song; Ma, Yue; Uzamurera, Aimee Grace; Xiao, Kai-Wen; Khan, Aziz; Tao, Xiu-Ping; Wang, Wen-Ying; Tao, Hong-Yan; Xiong, You-Cai.
Afiliación
  • Wang PY; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Zhao ZY; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Xiong XB; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Wang N; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Zhou R; School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China.
  • Zhang ZM; School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China.
  • Ding F; College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China.
  • Hao M; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Wang S; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Ma Y; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Uzamurera AG; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Xiao KW; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Khan A; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
  • Tao XP; Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610095, China.
  • Wang WY; School of Life Sciences, Qinghai Normal University, Xining 810001, China.
  • Tao HY; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China. Electronic address: beltroad@lzu.edu.cn.
  • Xiong YC; State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China. Electronic address: xiongyc@lzu.edu.cn.
Water Res ; 245: 120581, 2023 Oct 15.
Article en En | MEDLINE | ID: mdl-37703757
Polyethylene film mulching is a key technology for soil water retention in dryland agriculture, but the aging of the films can generate a large number of microplastics with different shapes. There exists a widespread misunderstanding that the concentrations of microplastics might be the determinant affecting the diversity and assembly of soil bacterial communities, rather than their shapes. Here, we examined the variations of soil bacteria community composition and functioning under two-year field incubation by four shapes (ball, fiber, fragment and powder) of microplastics along the concentration gradients (0.01%, 0.1% and 1%). Data showed that specific surface area of microplastics was significantly positively correlated with the variations of bacterial community abundance and diversity (r=0.505, p<0.05). The fragment- and fiber-shape microplastics displayed more pronounced interfacial continuity with soil particles and induced greater soil bacterial α-diversity, relative to the powder- and ball-shape ones. Strikingly, microplastic concentrations were not significantly correlated with bacterial community indices (r=0.079, p>0.05). Based on the variations of the ßNTI, bacterial community assembly actually followed both stochastic and deterministic processes, and microplastic shapes significantly modified soil biogeochemical cycle and ecological functions. Therefore, the shapes of microplastics, rather than the concentration, significantly affected soil bacterial community assembly, in association with microplastic-soil-water interfaces.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Water Res Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Water Res Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido