Characterization of the cured mutants of Lactobacillus casei
1985
Yoo, S.Y. (Hankook Yakurt Inst., Ciheung-kun (Korea R.)) | Kang, H.S. (Seoul National Univ., Seoul (Korea R.). Dept. of Microbiology)
The cured mutant strains (CW, CSM, CEM, CAM) were obtained from Lactobacillus casei YIT 9018 spontaneously and by ethidium bromide treatments. The lactose fermenting ability of those mutants was tested and plasmid was found to have some functions in lactose metabolism. Plasmid (PLC) has been detected in Lactobacillus casei YIT 9018, but has not been detected in mutants CSM, CEM, CAM. These plasmid cured mutants showed a decrease in the ability to produce lactic acid from lactose
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