Effect of microplastics on ecosystem functioning: Microbial nitrogen removal mediated by benthic invertebrates

被引:101
作者
Huang, Yuyue [1 ,2 ]
Li, Wei [1 ,2 ]
Gao, Jie [1 ,2 ]
Wang, Fang [1 ,2 ]
Yang, Wei [1 ,2 ]
Han, Le [1 ,2 ]
Lin, Dunmei [1 ,2 ]
Min, Bolin [1 ,2 ]
Zhi, Yue [1 ,2 ,3 ]
Grieger, Khara [4 ]
Yao, Jingmei [1 ,2 ]
机构
[1] Chongqing Univ, Minist Educ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Chongqing 400045, Peoples R China
[2] Chongqing Univ, Coll Environm & Ecol, Chongqing 400045, Peoples R China
[3] North Carolina State Univ, Dept Civil Construct & Environm Engn, Raleigh, NC 27695 USA
[4] North Carolina State Univ, Dept Appl Ecol, Raleigh, NC 27695 USA
基金
中国国家自然科学基金;
关键词
Microplastics; Nitrogen removal function; Denitrification; Anammox; Chironomids; Microorganisms; ARENICOLA-MARINA; AQUATIC ECOSYSTEMS; N2O EMISSION; SEDIMENT; DENITRIFICATION; CHLOROTHALONIL; EXPOSURE; BIOFILMS; ANAMMOX; IMPACT;
D O I
10.1016/j.scitotenv.2020.142133
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
While ecotoxicological impacts of microplastics on aquatic organisms have started to be investigated recently, impacts on ecosystem functions mediated by benthic biota remain largely unknown. We investigated the effect of microplastics on nitrogen removal in freshwater sediments where microorganisms and benthic invertebrates (i.e., chironomid larvae) co-existed. Using microcosm experiments, sediments with and without invertebrate chironomid larvae were exposed to microplastics (polyethylene) at concentrations of 0, 0.1, and 1 wt%. After 28 days of exposure, the addition of microplastics or chironomid larvae promoted the growth of denitrifying and anammox bacteria, leading to increased total nitrogen removal, in both cases. However, in microcosms with chironomid larvae and microplastics co-existing, nitrogen removal was less than the sum of their individual effects, especially at microplastics concentration of 1 wt%, indicating an adverse effect on microbial nitrogen removal mediated by macroinvertebrates. This study reveals that the increasing concentration of microplastics entangled the nitrogen cycling mediated by benthic invertebrates in freshwater ecosystems. These findings highlight the pursuit of a comprehensive understanding of the impacts of microplastics on the functioning in freshwater ecosystems. (C) 2020 Elsevier B.V. All rights reserved.
引用
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页数:9
相关论文
共 70 条
[21]  
Epler JohnH., 2001, Identification Manual for the Larval Chironomidae (Diptera) of North and South Carolina
[22]   Human Influences on Nitrogen Removal in Lakes [J].
Finlay, Jacques C. ;
Small, Gaston E. ;
Sterner, Robert W. .
SCIENCE, 2013, 342 (6155) :247-250
[23]   A meta-analysis of the effects of exposure to microplastics on fish and aquatic invertebrates [J].
Foley, Carolyn J. ;
Feiner, Zachary S. ;
Malinich, Timothy D. ;
Hook, Tomas O. .
SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 631-632 :550-559
[24]   Bioturbation in the Venice Lagoon: Rates and relationship to organisms [J].
Gerino, Magali ;
Frignani, Mauro ;
Mugnai, Cristian ;
Bellucci, Luca G. ;
Prevedelli, Daniela ;
Valentini, Andrea ;
Castelli, Alberto ;
Delmotte, Sebastien ;
Sauvage, Sabine .
ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY, 2007, 32 (01) :14-25
[25]   Microplastics Affect the Ecological Functioning of an Important Biogenic Habitat [J].
Green, Dannielle Senga ;
Boots, Bas ;
O'Connor, Nessa E. ;
Thompson, Richard .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2017, 51 (01) :68-77
[26]   Effects of conventional and biodegradable microplastics on a marine ecosystem engineer (Arenicola marina) and sediment nutrient cycling [J].
Green, Dannielle Senga ;
Boots, Bas ;
Sigwart, Julia ;
Jiang, Shan ;
Rocha, Carlos .
ENVIRONMENTAL POLLUTION, 2016, 208 :426-434
[27]   The role of water nitrogen retention in integrated nutrient management: assessment in a large basin using different modelling approaches [J].
Grizzetti, Bruna ;
Passy, Paul ;
Billen, Gilles ;
Bouraoui, Faycal ;
Garnier, Josette ;
Lassaletta, Luis .
ENVIRONMENTAL RESEARCH LETTERS, 2015, 10 (06)
[28]   Tube-dwelling invertebrates: tiny ecosystem engineers have large effects in lake ecosystems [J].
Hoelker, Franz ;
Vanni, Michael J. ;
Kuiper, Jan J. ;
Meile, Christof ;
Grossart, Hans-Peter ;
Stief, Peter ;
Adrian, Rita ;
Lorke, Andreas ;
Dellwig, Olaf ;
Brand, Andreas ;
Hupfer, Michael ;
Mooij, Wolf M. ;
Nuetzmann, Gunnar ;
Lewandowski, Joerg .
ECOLOGICAL MONOGRAPHS, 2015, 85 (03) :333-351
[29]  
Horton A.A., 2016, SETAC EUR 26 ANN M N
[30]   Acute response of soil denitrification and N2O emissions to chlorothalonil: A comprehensive molecular mechanism [J].
Hu, Xuebin ;
Wang, Yiyu ;
Su, Xiaoxuan ;
Chen, Yi .
SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 636 :1408-1415