Microplastic Fibers Increase Sublethal Effects of AgNP and AgNO3 in Daphnia magna by Changing Cellular Energy Allocation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F21%3A43921926" target="_blank" >RIV/60461373:22320/21:43921926 - isvavai.cz</a>
Result on the web
<a href="https://setac.onlinelibrary.wiley.com/doi/full/10.1002/etc.5136" target="_blank" >https://setac.onlinelibrary.wiley.com/doi/full/10.1002/etc.5136</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/etc.5136" target="_blank" >10.1002/etc.5136</a>
Alternative languages
Result language
angličtina
Original language name
Microplastic Fibers Increase Sublethal Effects of AgNP and AgNO3 in Daphnia magna by Changing Cellular Energy Allocation
Original language description
The effects of combined exposure to microplastics and contaminants are still not completely understood. To fill this gap, we assessed the effects of polyethylene terephthalate microplastic fibers (MF) (100 mg/L; 360 µm average length) on the toxicity of AgNP (32 nm) and AgNO3 (0.1 – 10 µg Ag/L) to Daphnia magna. Acute immobilization (EC50) and cellular energy allocation (CEA; ratio between available energy and energy consumption) were determined in neonates (<24 h) and juveniles (7 d old), respectively. The 48h-EC50 for AgNP and AgNO3 (2.6 and 0.67 µg Ag/L, respectively) was not affected by MF presence (2.2 and 0.85 µg Ag/L, respectively). No decrease in the available energy was observed, as lipid, carbohydrate, and protein contents were unaffected. However, a significant increase in energy consumption was observed in animals exposed to AgNO3 (250% compared to control) and to the combination of MF with AgNP (170%) and AgNO3 (260%). The exposure to MF alone or in combination with both Ag forms decreased the CEA (values were 55-75% of control values). Our results show that upon short-term exposure (48 h) MF increased Ag toxicity at a subcellular level (i.e., CEA), but not at the individual level (i.e., immobilization). These results highlight the importance of combining different levels of biological organization to fully assess the ecotoxicological effects of plastics in association with environmental contaminants.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Toxicology and Chemistry (ET&C)
ISSN
0730-7268
e-ISSN
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Volume of the periodical
Neuveden
Issue of the periodical within the volume
JUL 2021
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000675578300001
EID of the result in the Scopus database
2-s2.0-85111139716