In the present study, we determined the 24, 48, 72, and 96 h LC50 values for a glyphosate- based commercial herbicide (GBH) for the aquatic snail Melanopsis praemorsa. We examined subacute toxicity responses from M. praemorsa after 30-day exposure to 1/10, 1/5, and 1/2 of the 96 h LC50 value using several biochemical markers. Glutathione reductase (GR) and glutathione S-transferase (GST) activities were significantly inhibited when compared to control after 4 days of GBH exposure. On the twentieth day of exposure, GST and GR activities were inhibited in organisms exposed to both LC50/10 and LC50/5 compared to control. These results showed that chronic GBH exposure inhibited GST, an important detoxifying enzyme. GR, an important oxidative stress marker, was likely inhibited as a result of inhibition of the detoxification mechanism.
Primary Language | English |
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Subjects | Structural Biology |
Journal Section | Biology |
Authors | |
Publication Date | June 25, 2020 |
Submission Date | September 24, 2019 |
Acceptance Date | March 2, 2020 |
Published in Issue | Year 2020 |
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