Increased response of the rainbow trout gonad cell unscheduled DNA repair assay

1985 ◽  
Vol 34 (1) ◽  
pp. 340-348 ◽  
Author(s):  
Douglas G. Walton ◽  
Alfred B. Acton ◽  
Hans F. Stich
Keyword(s):  
Toxics ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 174
Author(s):  
Shannon Weeks Santos ◽  
Jérôme Cachot ◽  
Bettie Cormier ◽  
Nicolas Mazzella ◽  
Pierre-Yves Gourves ◽  
...  

The aim of this study was to analyze the impact of three concentrations of a pesticide mixture on the first development stages of rainbow trout (Oncorhynchus mykiss). The mixture was made up of three commonly used pesticides in viticulture: glyphosate (GLY), chlorpyrifos (CPF) and copper sulfate (Cu). Eyed stage embryos were exposed for 3 weeks to three concentrations of the pesticide mixture. Lethal and sub-lethal effects were assessed through a number of phenotypic and molecular endpoints including survival, hatching delay, hatching success, biometry, swimming activity, DNA damage (Comet assay), lipid peroxidation (TBARS), protein carbonyl content and gene expression. Ten target genes involved in antioxidant defenses, DNA repair, mitochondrial metabolism and apoptosis were analyzed using real-time RT-qPCR. No significant increase of mortality, half-hatch, growth defects, TBARS and protein carbonyl contents were observed whatever the pesticide mixture concentration. In contrast, DNA damage and swimming activity were significantly more elevated at the highest pesticide mixture concentration. Gene transcription was up-regulated for genes involved in detoxification (gst and mt1), DNA repair (ogg1), mitochondrial metabolism (cox1 and 12S), and cholinergic system (ache). This study highlighted the induction of adaptive molecular and behavioral responses of rainbow trout larvae when exposed to environmentally realistic concentrations of a mixture of pesticides.


1989 ◽  
Vol 10 (6) ◽  
pp. 995-1001 ◽  
Author(s):  
Michael R. Miller ◽  
James B. Blair ◽  
David E. Hinton

1975 ◽  
Vol 58 (5) ◽  
pp. 1074-1076
Author(s):  
Grant L Schoenhard ◽  
Paul E Bishop ◽  
Donald J Lee ◽  
Russell O Sinnhuber

Abstract A rapid and sensitive microbial assay was developed to detect lethal products of anatoxin B1 metabolism by rainbow trout (Salmon gairdneri) Mt. Shasta strain. Bacillus subtilis GSY 1057 (hisA1, uvr-1, metB4), a DNA repair deficient strain, was incubated for 20 min in the 20,000 × g supernate from trout liver homogenates which had been preincubated for 10 min with various levels of aflatoxin B1. Serial dilutions of the incubation mixture were plated in triplicate on tryptose blood agar base plates and colonies were counted after 12 hr at 37°C. One μmole aflatoxin B1 in 3.2 ml incubation mixture reduced viability 60°.


2005 ◽  
Vol 173 (4S) ◽  
pp. 71-71
Author(s):  
Peter E. Clark ◽  
M. Craig Hall ◽  
Kristin L. Lockett ◽  
Jianfeng Xu ◽  
Sigun L. Zheng ◽  
...  

2006 ◽  
Vol 175 (4S) ◽  
pp. 317-317
Author(s):  
Xifeng Wu ◽  
Jian Gu ◽  
H. Barton Grossman ◽  
Christopher I. Amos ◽  
Carol Etzel ◽  
...  

2005 ◽  
Vol 36 (7) ◽  
pp. 42
Author(s):  
PATRICE WENDLING
Keyword(s):  

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