Differential Effects of Atrazine on Chlorophyceae Species and Association with Morphology, Photosynthesis, Chlorophyll Content, and Glutathione‐ S ‐Transferase Activity

Autor: Muryllo Santos Castro, Jaqueline Carmo Silva, Bruno Roswag Machado, Pablo Santos Guimarães, Ana Teresa Lombardi, Camila De Martinez Gaspar Martins, Juliano Zanette
Rok vydání: 2022
Předmět:
Zdroj: Environmental Toxicology and Chemistry. 41:1675-1685
ISSN: 1552-8618
0730-7268
DOI: 10.1002/etc.5339
Popis: Atrazine is a herbicide widely used in the control of weeds in crops such as corn, sugar cane, and sorghum. It is often found in aquatic environments, where it can potentially endanger nontarget organisms such as microalgae. The present study evaluated atrazine toxicity to seven different species of Chlorophyceae and the tolerance of the species to the herbicide was related to morphological, photosynthetic, chlorophyll-a content and the activity of the glutathione-S-transferase enzyme (GST). The comparison of median effect concentration (EC50) values for growth inhibition indicates higher toxicity of atrazine for Pseudopediastrum boryanum and Desmodesmus communis, intermediate toxicity for Ankistrodesmus densus, Chlamydomonas puliminiorfes, and Raphidocelis subcapitata, and lower toxicity for Kirchneriella lunaris and Ankistrodesmus falcatus (EC50: 38, 42, 66, 103, 248, 1004, and 1585 µg L
Databáze: OpenAIRE
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