Effects of the fungicide azoxystrobin on Atlantic salmon (Salmo salar L.) smolt.

Abstract:

:Atlantic salmon smolts were exposed to three doses of the fungicide azoxystrobin for 4 days, and physiological blood parameters and transcriptional effects in liver and muscle were evaluated in search for potential negative effects. Azoxystrobin exposure mediated up-regulation of catalase, MAPK1 and IGFBP1 in liver tissue. Catalase, transferrin, IGFBP1 and TNFR were up-regulated and CYP1A down-regulated in muscle tissue. Blood parameters glucose, hematocrit, pCO(2), HCO(3) and pH grouped together with transcripts levels of MnSOD, MAPK1, IGFBP1, MAP3K7 and GPx4 in liver of fish exposed to the highest azoxystrobin concentration (352 μgL(-1)) using principal component analysis (PCA). In muscle, the blood parameters glucose, hematocrit, pCO(2), HCO(3) and pH grouped together with transcript levels of heme oxygenase, thioredoxin, MnSOD, TNFR and MMP9. These results suggest that the fungicide azoxystrobin affects mitochondrial respiration and mechanisms controlling cell growth and proliferation in fish and may have negative effects on juvenile Atlantic salmon.

journal_name

Ecotoxicol Environ Saf

authors

Olsvik PA,Kroglund F,Finstad B,Kristensen T

doi

10.1016/j.ecoenv.2010.07.017

subject

Has Abstract

pub_date

2010-11-01 00:00:00

pages

1852-61

issue

8

eissn

0147-6513

issn

1090-2414

pii

S0147-6513(10)00167-3

journal_volume

73

pub_type

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