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上游充通大 SHANGHAI JIAO TONG UNIVERSITY Example:Can E.col/cells choose different kinds of foods? If glucose and lactose are Growth on both available,E.coli will lactose Glucose utilize glucose first. exhausted Only after all glucose has been used up,can lactose be used as carbon source. Only after glucose has been llao anneley Growth on used up,B-galactosidase glucose will be produced B-半乳糖 苷酶 0 1 2 3 4 Time(h) 02012R Diauxic growth on a mixturelof glucoseianddactose3iotech.CHEN FENG,School of Life Sciences and Biotech. Example: Can E. coli cells choose different kinds of foods? If glucose and lactose are both available, E. coli will utilize glucose first. Only after all glucose has been used up, can lactose be used as carbon source. Only after glucose has been used up, -galactosidase will be produced -半乳糖 苷酶 Diauxic growth on a mixture of glucose and lactose
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