Dysbiosis in the Gut Microbiota of Soil Fauna Explains the Toxicity of Tire Tread Particles
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Dysbiosis in the Gut Microbiota of Soil Fauna Explains the Toxicity of Tire Tread Particles. / Ding, Jing; Zhu, Dong; Wang, Hong-Tao; Lassen, Simon Bo; Chen, Qing-Lin; Li, Gang; Lv, Min; Zhu, Yong-Guan.
I: Environmental Science & Technology, Bind 54, Nr. 12, 2020, s. 7450-7460.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Dysbiosis in the Gut Microbiota of Soil Fauna Explains the Toxicity of Tire Tread Particles
AU - Ding, Jing
AU - Zhu, Dong
AU - Wang, Hong-Tao
AU - Lassen, Simon Bo
AU - Chen, Qing-Lin
AU - Li, Gang
AU - Lv, Min
AU - Zhu, Yong-Guan
PY - 2020
Y1 - 2020
N2 - Tread particles (TPs) from vehicle tires are widely distributed in soil ecosystems; therefore, there is an urgent need to evaluate their effects on soil biota. In the present study, the soil worm Enchytraeus crypticus was incubated for 21 days in soil microcosms containing increasing concentrations of TPs (0, 0.0048%, 0.024%, 0.12%, 0.6%, and 3% of dry soil weight). High concentrations of zinc (Zn, 9407.4 mg kg(-1)) and polycyclic aromatic hydrocarbons (PAHs, 46.8 mg kg(-1)) were detected in the TPs, which resulted in their increased concentrations in soils amended with TPs. We demonstrated that TPs had an adverse effect on the survival (decreased by more than 25%) and reproduction (decreased by more than 50%) of the soil worms. Moreover, TP exposure disturbed the microbiota of the worm guts and surrounding soil. In addition, a covariation between bacterial and fungal communities was observed in the worm guts after exposure to TPs. Further analysis showed that TP exposure caused an enrichment of microbial genera associated with opportunistic pathogenesis in the worm guts. The combined results from this study indicate that TPs might threaten the terrestrial ecosystem by affecting soil fauna and their gut microbiota.
AB - Tread particles (TPs) from vehicle tires are widely distributed in soil ecosystems; therefore, there is an urgent need to evaluate their effects on soil biota. In the present study, the soil worm Enchytraeus crypticus was incubated for 21 days in soil microcosms containing increasing concentrations of TPs (0, 0.0048%, 0.024%, 0.12%, 0.6%, and 3% of dry soil weight). High concentrations of zinc (Zn, 9407.4 mg kg(-1)) and polycyclic aromatic hydrocarbons (PAHs, 46.8 mg kg(-1)) were detected in the TPs, which resulted in their increased concentrations in soils amended with TPs. We demonstrated that TPs had an adverse effect on the survival (decreased by more than 25%) and reproduction (decreased by more than 50%) of the soil worms. Moreover, TP exposure disturbed the microbiota of the worm guts and surrounding soil. In addition, a covariation between bacterial and fungal communities was observed in the worm guts after exposure to TPs. Further analysis showed that TP exposure caused an enrichment of microbial genera associated with opportunistic pathogenesis in the worm guts. The combined results from this study indicate that TPs might threaten the terrestrial ecosystem by affecting soil fauna and their gut microbiota.
KW - ROAD WEAR PARTICLES
KW - RESISTANCE GENES
KW - EXPOSURE
KW - ZINC
KW - MICROPLASTICS
KW - ENVIRONMENT
KW - ECOSYSTEMS
KW - COLLEMBOLA
KW - LEACHATE
KW - LITTER
U2 - 10.1021/acs.est.0c00917
DO - 10.1021/acs.est.0c00917
M3 - Journal article
C2 - 32463658
VL - 54
SP - 7450
EP - 7460
JO - Environmental Science & Technology
JF - Environmental Science & Technology
SN - 0013-936X
IS - 12
ER -
ID: 249487431