Glyphosate on digestive enzymes activity in piava (Leporinus obtusidens)

The effects of glyphosate, a nonselective herbicide (1.0 or 5.0mg L-1) on digestive enzymes activity (stomach and intestine) were evaluated in juveniles of piava (Leporinus obtusidens) after 90 days of exposure. The activity of acid protease, trypsin, chymotrypsin and amylase increased with the increase of glyphosate concentration. These results indicate that glyphosate affects digestive enzyme activities in this species, and may be an indicator of poor nutrient availability when fish survive in herbicide-contaminated water.

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Bibliographic Details
Main Authors: Salbego,Joseânia, Pretto,Alexandra, Silva,Vera Maria Machado da, Loro,Vania Lucia, Lazzari,Rafael, Gioda,Carolina Rosa, Baldisserotto,Bernardo
Format: Digital revista
Language:English
Published: Universidade Federal de Santa Maria 2014
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000901603
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Summary:The effects of glyphosate, a nonselective herbicide (1.0 or 5.0mg L-1) on digestive enzymes activity (stomach and intestine) were evaluated in juveniles of piava (Leporinus obtusidens) after 90 days of exposure. The activity of acid protease, trypsin, chymotrypsin and amylase increased with the increase of glyphosate concentration. These results indicate that glyphosate affects digestive enzyme activities in this species, and may be an indicator of poor nutrient availability when fish survive in herbicide-contaminated water.