Distribution of tetracycline resistance gene, <italic>tet</italic>(M), in Gram-positive and Gram-negative bacteria isolated from sediment and seawater at a coastal aquaculture site in Japan
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- Nonaka Lisa
- Center for Marine Environmental Studies, Ehime University
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- Ikeno Kinuyo
- Center for Marine Environmental Studies, Ehime University
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- Suzuki Satoru
- Center for Marine Environmental Studies, Ehime University
書誌事項
- タイトル別名
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- Distribution of Tetracycline Resistance Gene, tet(M), in Gram-Positive and Gram-Negative Bacteria Isolated from Sediment and Seawater at a Coastal Aquaculture Site in Japan
- Distribution of tetracycline gene, tet(M), in gram-positive and gram-negative bacteria isolated from sediment and seawater at a coastal aquaculture site in Japan
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説明
We found increased numbers of oxytetracycline (OTC)-resistant bacteria in sediment and seawater around a marine aquaculture site after OTC therapy. Samples were collected at an aquaculture site along the coast of the Seto Inland Sea, Japan in 2004. In April, the percentage of bacteria resistant to 60 μg mL-1 OTC in the surface sediment was 6.8%-20.0%. The percentages increased during OTC therapy in the summer reaching 53.3%-60.7% in September. Ninety-two days after drug cessation, the percentages decreased to below 22.9%. Tet(M)-positive bacteria were detected in the sediment and seawater samples. Tet(M) was evident in both Gram-positive and Gram-negative bacteria from various genera, and was newly identified in Paenibacillus, Sporosarcina, Shewanella, and Pseudoalteromonas. The dominant tet(M)-positive isolates were strains of Vibrio suggesting that this genus is an important reservoir for tet(M) in the marine environment. Two different alleles were found, tet(M)-A and tet(M)-B, each in isolates from five genera. The data suggests drug therapy used in the aquaculture acted as a selective pressure promoting increased numbers of resistant bacteria.<br>
収録刊行物
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- Ｍｉｃｒｏｂｅｓ ａｎｄ ｅｎｖｉｒｏｎｍｅｎｔｓ
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Ｍｉｃｒｏｂｅｓ ａｎｄ ｅｎｖｉｒｏｎｍｅｎｔｓ 22 (4), 355-364, 2007
日本微生物生態学会 / 日本土壌微生物学会 / Taiwan Society of Microbial Ecology / 植物微生物研究会 / 極限環境生物学会
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詳細情報 詳細情報について
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- CRID
- 1390282679321276032
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- NII論文ID
- 110006473362
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- NII書誌ID
- AA11173196
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- ISSN
- 13474405
- 13426311
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- NDL書誌ID
- 9278940
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
- OpenAIRE
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- 使用不可
