急性氨会导致的致病性失生症 肠道生物膜
Ning Gao1,2,3, Yi Shu1,2,3, Yongming Wang1,2,3
1Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya 572000, China.
International journal of molecular sciences
|March 13, 2024
概括
急性氨暴露会损害白 (Litopenaeus vannamei),因为它会破坏肠道微生物群,减少多样性,并促进致病性Vibrio菌株,导致死亡率增加和肝损伤.
科学领域:
- 水生物质毒理学研究
- 微生物学 微生物学
- 动物科学动物科学
背景情况:
- 氨是一种常见的水生污染物,已知对水生生物有毒.
- 氨对肠健康和死亡率的影响的具体机制尚未完全理解.
- 了解这些机制对于水产养殖疾病管理至关重要.
研究的目的:
- 研究急性氨暴露对白 (Litopenaeus vannamei) 的肠道微生物群的影响.
- 为了确定氨引起的肠道失调和死亡率之间的关联.
- 识别特定的微生物转移及其功能影响.
主要方法:
- 暴露Litopenaeus vannamei一个致命度的氨48小时.
- 评估的死亡率和肝胰腺状况.
- 使用测序和表型方法分析肠道微生物多样性,组成和功能.
- 在物种层面进行鉴定和功能基因分析.
主要成果:
- 暴露于氨气显著增加了的死亡率,并造成严重的肝损伤.
- 肠道微生物多样性下降,有益细菌减少,致病性Vibrio菌株增加.
- 观察到从有氧转变为随意无氧微生物主导的转变.
- 与生物膜形成,宿主殖民和毒性相关的基因被丰富.
结论:
- 急性氨暴露会诱导Litopenaeus vannamei的肠道失调,其特点是减少多样性和增加病原性.
- 致病性Vibrio harveyi菌株在氨引起的病中起着重要作用.
- 这些发现阐明了在环境氨气压力下病的关键机制.
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