沈浩, 陆笑澜, 韩阳春, 张迪, 吕宝一. 入境船舶压载水潜在致病菌组成及影响因素研究[J]. 海洋环境科学, 2022, 41(2): 260-266. DOI: 10.12111/j.mes.20200285
引用本文: 沈浩, 陆笑澜, 韩阳春, 张迪, 吕宝一. 入境船舶压载水潜在致病菌组成及影响因素研究[J]. 海洋环境科学, 2022, 41(2): 260-266. DOI: 10.12111/j.mes.20200285
SHEN Hao, LU Xiao-lan, HAN Yang-chun, ZHANG Di, LV Bao-yi. The composition and influencing factors of potential pathogenic bacteria in ballast water of entry ships[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2022, 41(2): 260-266. DOI: 10.12111/j.mes.20200285
Citation: SHEN Hao, LU Xiao-lan, HAN Yang-chun, ZHANG Di, LV Bao-yi. The composition and influencing factors of potential pathogenic bacteria in ballast water of entry ships[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2022, 41(2): 260-266. DOI: 10.12111/j.mes.20200285

入境船舶压载水潜在致病菌组成及影响因素研究

The composition and influencing factors of potential pathogenic bacteria in ballast water of entry ships

  • 摘要: 船舶压载水直接促进了地理性隔离海域之间的水体交换,可作为潜在致病菌迁移扩散的媒介。本文以采集到的25艘入境船舶的压载水样品为研究对象,采用高通量测序技术对潜在致病菌群落组成和影响因素进行了初步解析。结果表明:变形菌(Proteobacteria)、拟杆菌(Bacteroidetes)和放线菌(Actinobacteria)为压载水中的优势菌门。船舶压载水中共检出36个潜在致病菌属和19个潜在致病菌种。痤疮丙酸杆菌(Cutibacterium acnes)、大肠埃希氏杆菌(Escherichia coli)和表皮葡萄球菌(Staphylococcus epidermidis)为压载水中最普遍的潜在致病菌,检出率超过50%。置换和未置换压载水中潜在致病菌的种类数量和丰度并无显著差异。此外,压载水中的潜在致病菌与磷酸盐及大肠埃希氏杆菌呈显著正相关性,表明其可能与近岸的人类活动有关。综上所述,相关部门应当对船舶压载水加强管理,以降低潜在致病菌的入侵扩散风险。

     

    Abstract: Ship ballast water directly promotes the water exchange between geographically isolated sea areas and has been regarded as a medium for the migration of potential pathogenic bacteria. In this study, 25 ballast water samples of entry ships were collected and high-throughput sequencing technology was used to analyze the composition and influencing factors of potential pathogenic bacteria. The results showed Proteobacteria, Bacteroidetes and Actinobacteria were the dominant bacteria in ship ballast waters. A total of 36 genera and 19 species of potential pathogenic bacteria were detected in the ballast waters. Cutibacterium acnes, Escherichia coli and Staphylococcus epidermidis were the most common pathogens with the detection rate exceed 50% in ship ballast waters. No significant difference was found for the species number and abundances of potential pathogenic bacteria between the exchanged and unexchanged ballast waters. The close positive relationship between pathogenic bacteria and phosphorus and Escherichia coli indicated that human activities should be an important factor for those pathogens in ballast waters. In all, it should strengthen the management of ballast water so as to reduce the invasion risk of potential pathogenic bacteria.

     

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