Based on the above data, explain why E. coli ceased growing in the chemically defined medium but continued to grow in the nutrient broth.
Based on the above data, explain why E. coli ceased growing in the chemically defined medium but continued to grow in the nutrient broth.
根据上述数据，解释为何大肠杆菌在化学成份确定的培养基中停止生长，但是在营养肉羹培养基中又恢复生长。