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- Hu Yuan
- Laboratory of Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo
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- Hamamoto Hiroshi
- Laboratory of Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo
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- Sekimizu Kazuhisa
- Laboratory of Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo
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抄録
Injection of a Japanese cedar pollen suspension into silkworm hemolymph kills the silkworms. A certain species of bacteria proliferated in the hemolymph of the dead silkworms. A 16S rDNA analysis demonstrated that the proliferating bacteria were Bacillus cereus, Bacillus thuringiensis, Bacillus weihenstephanensis,and Bacillus amyloliquefaciens. Among them, B. cereus, B. thuringiensis, and B. weihenstephanensis exhibited hemolysis against sheep red blood cells and were lethal to mice. A culture filtrate of B. amyloliquefaciens showed enzyme activity toward the pectic membrane of cedar pollen. These results suggest that silkworms as an animal model are useful for evaluating the pathogenicity of bacteria attached to cedar pollen.
収録刊行物
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- Drug Discoveries & Therapeutics
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Drug Discoveries & Therapeutics 7 (4), 153-157, 2013
特定非営利活動法人 バイオ＆ソーシャル・サイエンス推進国際研究交流会