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The biofilteration ability of oysters (Crassostrea gigas) to reduce Aeromonas salmonicida in salmon culture
Ma, Xiaona1,2; Li, Xian1; Sun, Guoxiang1; Sharawy, Zaki Zaki1,3; Qiu, Tianlong1; Du, Yishuai1; Liu, Ying4
2017-07-01
发表期刊APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
卷号101期号:14页码:5869-5880
文章类型Article
摘要Pathogen contamination in the environment is inevitable with the rapid development of intensive aquaculture. Therefore, alternative ecofriendly biological strategies to control pathogenic bacteria are required. However, our aim was to investigate the ability of oysters (Crassostrea gigas) to filter the important opportunistic pathogen, Aeromonas salmonicida (strain C4), using a green fluorescent protein tag (GFP) in the Atlantic salmon (Salmo salar) farming wastewater. Hence, A. salmonicida removal efficiency and ingestion rate were detected in two different oyster stages (larvae and adults). To evaluate the practical performance of oysters as A. salmonicida biofilter, adult oysters were applied to an integrated constructed wetlands system (ICWS) and their long-term C4-GFP removal efficiency was recorded for 60 days. Overall, our results clearly indicated that oysters had substantial A. salmonicida removal ability via their ingestion process when observed under a fluorescent microscope. Approximately 88-95% of C4-GFP was removed by oyster larvae at an ingestion rate of 6.4 x 10(3)-6.2 x 10(5) CFU/h center dot ind, while 79-92% of C4-GFP was removed by adult oysters at an ingestion rate of 2.1 x 10(4)-3.1 x 10(6) CFU/h center dot ind. Furthermore, 57.9 +/- 17.2% of C4-GFP removal efficiency was achieved when oysters were applied to ICWS. We, therefore, concluded that using oysters as a biofilter represents an effective alternative for removing A. salmonicida from aquaculture wastewater. However, the fate of oysters after ingesting the pathogenic bacteria, acting as a potential reservoir or vector for pathogens, is still debatable. This research provides the basis for the application of oysters as a biofilter to remove pathogens from aquaculture wastewater in industrialized production.
关键词Bacterial Control Aeromonas Salmonicida Oysters Biofilter Wastewater Treatments
DOI10.1007/s00253-017-8296-3
收录类别SCI
语种英语
WOS记录号WOS:000405181100026
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/137033
专题海洋生态与环境科学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.NIOF, Aquaculture Div, Suez, Egypt
4.Dalian Ocean Univ, Marine Sci & Environm Engn Sch, Dalian 116023, Peoples R China
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GB/T 7714
Ma, Xiaona,Li, Xian,Sun, Guoxiang,et al. The biofilteration ability of oysters (Crassostrea gigas) to reduce Aeromonas salmonicida in salmon culture[J]. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,2017,101(14):5869-5880.
APA Ma, Xiaona.,Li, Xian.,Sun, Guoxiang.,Sharawy, Zaki Zaki.,Qiu, Tianlong.,...&Liu, Ying.(2017).The biofilteration ability of oysters (Crassostrea gigas) to reduce Aeromonas salmonicida in salmon culture.APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,101(14),5869-5880.
MLA Ma, Xiaona,et al."The biofilteration ability of oysters (Crassostrea gigas) to reduce Aeromonas salmonicida in salmon culture".APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 101.14(2017):5869-5880.
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