Kuma Bamboo Grass (<i>Sasa veitchii</i>) Extracts Exhibit Protective Effects Against Atypical <i>Aeromonas salmonicida</i> Infection in Goldfish (<i>Carassius auratus</i>)
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- ASAKURA HIROSHI
- Division of Biomedical Food Research, National Institute of Health Sciences
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- MAKINO SOU-ICHI
- Department of Nutrition, Osaka Seikei College
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- WATANABE KUNITOMO
- Kizawa Memorial Hospital
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- TUCHIDA YUZO
- Hououdou Co., Ltd
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- KAWABE MITSURO
- Hououdou Co., Ltd
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- SAKURAI DAISUKE
- Hououdou Co., Ltd
抄録
<p>Atypical Aeromonas salmonicida ( i.e. subsp. achromogenes and subsp. masoucida) are one of the major opportunistic pathogens that cause ulcer diseases in a variety of fishes, in which this pathogen has become a worldwide economic threat in sectors that handle of particular high-priced ornamental fishes like varicolored carp and goldfish due to appearance damages. Here we reported that the kuma bamboo grass (Sasa veitchii) extracts (KBGE) that contained a variety of fatty acids, exhibited antibacterial activity against nine Aeromonas strains including 5 atypical A. salmonicida strains. Experimental challenges with four atypical A. salmonicida strains revealed that supplementation with 375 to 750 μg/ml of the KBGE restored the survival of goldfish in coincidence of inhibition of both bacterial replication and superoxide dismutase (SOD) activity upon infection, compared with those of untreated control. Together, our data demonstrating the antibacterial effects of the plant extracts proposes its possible implication for prevention of Aeromonas infection in the ornamental fish.</p>
収録刊行物
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- Ｂｉｏｃｏｎｔｒｏｌ Ｓｃｉｅｎｃｅ
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Ｂｉｏｃｏｎｔｒｏｌ Ｓｃｉｅｎｃｅ 24 (3), 145-154, 2019
日本防菌防黴学会
