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沿海沉积物中的微生物群落对船只破坏活动造成的人为污染的结构和功能反应

Avani Bharatkumar Patel¹, Kunal R Jain¹, Vipin Gupta²

¹Post Graduate Department of Biosciences, UGC Centre of Advanced Study, Sardar Patel University, Satellite Campus, Vadtal Road, Bakrol, 388 315, Anand, Gujarat, India.

Marine environmental research

|November 1, 2025

概括

沉船污染改变了沿海微生物群落,增加了重金属和抗生素耐药性. 这种转变影响了受影响的海洋环境中的生物多样性和生态系统功能.

科学领域:

环境微生物学环境微生物学
海洋生态海洋生态学
生物地质化学生物地质化学

背景情况:

沿海生态系统面临着重大的人为威胁.
印度古吉拉特邦的阿兰-索西亚破船厂 (ASSBY) 是一个长期受污染的地点,由于数十年的破船活动.
了解微生物社区的转变对于评估生态系统的健康和弹性至关重要.

研究的目的:

为了比较附近的污染和原始的沿海地区之间的微生物社区组成,ASSBY.
研究微生物共发生网络,并预测与抗生素和重金属耐药性相关的基因.
为了识别与沉船污染相关的细菌生物标志物.

主要方法:

微生物群落的高通量测序.
用于功能性基因预测 (抗生素和重金属耐药性) 的元基因组挖掘.
LEfSe (线性差异分析效果大小) 用于生物标志物识别和并发网络分析.

主要成果:

与原始地点相比,受污染的地点显示重金属度升高 (例如铁),微生物多样性减少.
观察到细菌群落从Deltaproteobacteria (原始) 到Gammaproteobacteria (受污染) 的显著转变.
污染的地点被丰富了重金属和抗生素耐药性的基因,和异生菌化合物降解,与特定的生物标志物,如 Pseudomonas 确定.

结论:

慢性船舶破坏污染导致沿海微生物社区结构和功能发生重大变化.
污染地区的微生物群体表现出增强的抵抗机制,以适应严重的污染.
鉴定的细菌生物标志物和耐药性基因为生态系统适应和潜在的生物修复策略提供了洞察力.

关键词:

在 ARG 中,有 ARG 的存在.玛蛋白质细菌是一种细菌.海洋污染海洋污染这些PAHs是PAH.压力压力压力压力重金属重金属的使用.

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