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聚微纤维的摄入和净化是由Crassostrea gasar (Adanson,1757) 进行的

Layse Rodrigues do Rozario Teixeira Lins¹, Miguel Saldaña-Serrano¹, Carlos Henrique Araújo de Miranda Gomes²

¹Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88034-257, Brazil.

Marine environmental research

|March 15, 2024

概括

聚微纤维 (MF) 在中积聚,主要是在消化腺体中,而不会影响抗氧化酶. 净化减少了MF,但组织学变化表明潜在的炎症,引发了食品安全问题.

科学领域:

环境科学环境科学
海洋生物学海洋生物学
生态毒理学生态毒理学

背景情况:

微塑料污染,包括微纤维 (MF),对海洋生态系统构成越来越大的威胁.
是过的食者,易于积累环境污染物.
了解微纤维对Crassostrea gasar等商业重要物种的影响至关重要.

研究的目的:

为了产生环境相关的聚微纤维 (MFs).
为了研究 (Crassostrea gasar) 中MFs的生物积累.
通过使用生化和组织学生物标志物,评估MF对的亚致命影响.

主要方法:

聚织物被磨碎以产生MF (平均长度为570微米).
被暴露在0.5mg/L的MF中,持续2小时和24小时,然后进行48小时的净化期.
分析了抗氧化酶活性 (CAT,GST,GPx) 和组织学变化.

主要成果:

在的消化腺中积累的MF,观察到表面降解和可塑性增加.
没有发现对抗氧化酶活性有重大影响.
组织学分析显示MF在胃和棕色细胞中的积累,表明潜在的炎症.
净化导致MF积累的减少.

结论:

Crassostrea gasar可以生物积聚聚微纤维,特别是在消化系统中.
虽然抗氧化剂防御没有受到损害,但组织学发现表明潜在的不良影响.
在中MFs的生物积累引起了对海洋食物网的完整性和人类消费安全的担忧.

关键词:

生物化学反应的反应巴西本土是巴西本土.沿海污染沿海污染微塑料是一种微塑料.聚乙烯四甲酸是一种聚乙烯四甲酸.

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