期刊
JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH-PART A-CURRENT ISSUES
卷 85, 期 14, 页码 586-590出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15287394.2022.2054888
关键词
Binary mixture; herbicides; nanoparticles; Daphnia magna; oxidative stress
资金
- National Council for Scientific and Technological Development [CNPq CNPQ 302876/2019-7]
- Coordination of Improvement of Higher Education Personnel (CAPES)
- Santa Catarina University Scholarship Program
- Support Fund for Maintenance and Development of Higher Education
The study examines the oxidative stress caused by the binary mixture of silver nanoparticles and glyphosate in Daphnia magna. The results show that this mixture induces biochemical responses indicative of oxidative damage, leading to negative effects on the fitness, survival, and reproduction of Daphnia magna.
The aim of this study was to examine oxidative stress induced by the binary mixture of silver nanoparticles (AgNP) and glyphosate (Gly) in Daphnia magna by measurement of reactive oxygen species (ROS) production, glutathione (GSH) levels, enzyme activities of catalase (CAT) and superoxide dismutase (SOD) as well as malondialdehyde (MDA) content. Acute exposure of Daphnia magna to binary mixture of AgNP and Gly resulted in significant biochemical responses indicative of oxidative damage. This response seemed to be related to imbalance in enzymatic/non-enzymatic antioxidant enzymes associated with intracellular overproduction of ROS and significant increase in MDA levels, indicating that the integrity and function of the cell membrane was damaged. These changes adversely affected the fitness and survival of Daphnia magna and negatively influenced offspring growth and reproduction.
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