種々の温度で培養した冷水病菌のVBNC状態への移行
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- Sugahara Kazuhiro
- Shiga Prefectural Fisheries Experimental Station Graduate School of Agriculture, Kinki University
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- Fujiwara-Nagata Erina
- Department of Fisheries, Kinki University
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- Fukuda Ayami
- Graduate School of Agriculture, Kinki University
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- Eguchi Mitsuru
- Department of Fisheries, Kinki University
書誌事項
- タイトル別名
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- Viable but Non-culturable State of Bacterial Cold-water Disease Pathogen Flavobacterium psychrophilum at Various Temperatures
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説明
Bacterial cold-water disease (BCWD) caused by Flavobacterium psychrophilum leads to heavy mortality of ayu Plecoglossus altivelis in Japan. Previously, a 28°C warmed water treatment was shown to be an effective treatment for BCWD, since F. psychrophilum can not grow and maintain colonies at this temperature. However, it was unclear whether the bacteria might resuscitate after the treatment was over. Therefore, we investigated colony formation, membrane potential and pathogenicity of F. psychrophilum at various temperatures (15°C, 23°C, 28°C and 33°C) in sterilized underground water. Within 2 days at 28°C, F. psychrophilum completely lost their colony-forming abilities but still maintained their membrane potentials. It seemed that these cells entered into viable but non-culturable (VBNC) state. However, experimental ayu infection revealed that VBNC F. psychrophilum cells were unable to cause BCWD, suggesting that the cells were progressing towards death at 28°C.
収録刊行物
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- 魚病研究
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魚病研究 45 (4), 158-163, 2010
日本魚病学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282681439169664
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- NII論文ID
- 130000433250
- 10027671416
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- NII書誌ID
- AN00063165
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- ISSN
- 18817335
- 0388788X
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- NDL書誌ID
- 10954207
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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
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可