Shimane Journal of Medical Science

Shimane University Faculty of Medicine
ISSN :0386-5959(冊子体)
ISSN :2433-2410(オンライン)

クリエイティブ・コモンズ・ライセンス
これらの論文は クリエイティブ・コモンズ 表示 - 非営利 - 改変禁止 4.0 国際 ライセンスの下に提供されています。
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Shimane Journal of Medical Science 4 1
1980-06-01 発行

Suppressive Effect of Lactobacillus casei on the Drug Resistance Transfer in Escherichia coli

齋藤 肇
富岡 治明
浅野 京子
渡辺 隆司
ファイル
内容記述(抄録等)
In the mixed culture of Escherichia coli S-58 and S-42 strains, CP^r gene is thought to be transferred from the former to the latter by conjugation. The cultured supernatant of Lactobacillus casei YIT 0003 exhibited a considerable suppressive effect on the drug resistance transfer between the two E. coli strains. However,it failed to inhibit the R-factor transfer between E. coli W 3630 and ML 1410. This factor in the supernatant was heat stable, ethanol-precipitable, and the molecular weight was estimated to be approximately 6,000. This factor probably constitutes a non-dialyzable complex with some other substances in the culture fluid.