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Toxicity and Effects of the Herbicide Glufosinate-Ammonium (Basta) on the Marine Medaka Oryzias dancena

机译:除草剂草铵膦(Basta)对海洋Medaka Oryzias dancena的毒性和影响

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Glufosinate-ammonium, a component of the herbicide Basta, is one of the most extensively used pesticides worldwide. In this study, we assessed subchronic and chronic toxicities of Basta and its histopathological effects on the marine medaka Oryzias dancena. Marine medaka were exposed to 0, 2, 4, or 8 mg/L of Basta for 28 or 42 days. The lethal concentration ( ) of Basta for 96 h is 8.76 mg/L. Histological changes in the gills and liver were evaluated with histopathological indices, allowing quantification of the damage to fish exposed to Basta. Blood congestion, lamellar fusion, and epithelial lifting were observed in the gills, and hydropic degeneration, fibrosis, lipid degeneration, leukocyte infiltration, and necrosis were found in the liver. These responses could be useful indicators of Basta toxicity in this species.
机译:草铵膦铵盐是除草剂Basta的成分,是全球使用最广泛的农药之一。在这项研究中,我们评估了Basta的亚慢性和慢性毒性及其对海洋Medaka Oryzias dancena的组织病理学影响。将海暴露于0、2、4或8 mg / L的Basta中28或42天。 Basta 96小时的致死浓度()为8.76 mg / L。用组织病理学指标评估ological和肝脏的组织学变化,从而量化暴露于Basta的鱼类受到的损害。在the中观察到血液充血,层状融合和上皮抬升,并且在肝脏中发现了水样变性,纤维化,脂质变性,白细胞浸润和坏死。这些反应可能是该物种中Basta毒性的有用指标。

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