Effects of ciprofloxacin and levofloxacin on initial colonization of intestinal microbiota in Bufo gargarizans at embryonic stages

被引：0

作者：

Liu Y. ^{[1
]}

Wang Y. ^{[1
]}

Wang H. ^{[1
]}

机构：

[1] College of Life Sciences, Shaanxi Normal University, Shaanxi, Xi'an

来源：

Chemosphere | 2024年 / 361卷

关键词：

16S rRNA gene sequencing; Amphibian; Ciprofloxacin; Intestinal microbiota; Levofloxacin;

D O I：

10.1016/j.chemosphere.2024.142587

中图分类号：

学科分类号：

摘要：

Ciprofloxacin (CIP) and levofloxacin (LEV) are broad-spectrum antibiotics with potent antibacterial activity. Although many studies have shown that antibiotics can lead to gut microbiota disruption, the effects of CIP and LEV on gut microbial colonization at the embryonic stage remain poorly characterized. Here, we evaluated the response of Bufo gargarizans embryos in terms of gut microbiota colonization, growth and developmental stages to CIP and LEV exposure. Embryos treated with 100 μg/L CIP and LEV exhibited significantly reduced diversity and richness of the gut microbiota, as well as altered community structure. Both CIP and LEV treatments resulted in an increase in the pathogenic bacteria Bosea and Aeromonas, and they appeared to be more resistant to CIP than LEV. Additionally, CIP exposure caused reduced total length and delayed the development in B. gargarizans embryos, while LEV increased the total length and promoted embryonic development. The present study revealed the adverse effects of CIP and LEV exposure on host gut microbiota, growth and development during the embryonic stage, and contributed new perspectives to the evaluation of early aquatic ecological risk under CIP and LEV exposure. © 2024

引用

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