Impact of zinc oxide nanoparticles and ocean acidification on antioxidant responses of Mytilus coruscus

Huang, X. (author)

Liu, Y. (author)

Liu, Z. (author)

Zhao, Z. (author)

Dupont, Samuel, 1971 (author): Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Sven Lovén centrum för marina vetenskaper,Department of Biological and Environmental Sciences,The Sven Lovén Centre for Marine Sciences

Wu, F. (author)

Huang, W. (author)

Chen, J. (author)

Hu, M. (author)

Lu, W. (author)

Wang, Youji (author): Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Sven Lovén centrum för marina vetenskaper,Department of Biological and Environmental Sciences,The Sven Lovén Centre for Marine Sciences

(creator_code:org_t)

Related links:: https://gup.ub.gu.se...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

Increased production of engineered nanoparticles (NPs) has raised extensive concerns about the potential toxic effects on marine organisms. Extensive evidences documented the impact of ocean acidification (OA) on the physiology and fitness of bivalves. In the present study, we investigated the biochemical responses of the mussel Mytilus coruscus exposed to both nano-ZnO and low pH relevant for ocean acidification conditions for 14 d followed by a 7-d recovery period. Most biochemical indexes (superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), acid phosphatase (ACP) and alkaline phosphatase (ALP)) measured in gills and hemocytes were increased when the mussels were subject to low pH or high concentration of nano-ZnO, suggesting oxidative stress responses. No significant interactions between the two stressors were observed for most measured parameters. After a 1 week recovery period, low pH and nano-ZnO had less marked impact for SOD, GPx, ACP and ALP in hemocytes as compared to the end of the 14 d exposure. However, no recovery was observed in gills. Overall, our results suggest that both low pH and nano-ZnO induce an anti-oxidative response in Mytilus coruscus with gills being more sensitive than hemocytes. © 2017

By the author/editor: Huang, X.; Liu, Y.; Liu, Z.; Zhao, Z.; Dupont, Samuel, ...; Wu, F.; show more...; Huang, W.; Chen, J.; Hu, M.; Lu, W.; Wang, Youji; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Environmental Sc ...

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