Nutritional mutation营养型突变 圈Auxotroph营养缺陷型 A nutritional mutant that has a requirement for a growth factor Prototroph原养型 The wildtype parent for a nutritional mutation Chen Feng,Shanghai Jiao Tong UniverityChen Feng, Shanghai Jiao Tong Univerity Nutritional mutation 营养型突变 Auxotroph营养缺陷型 • A nutritional mutant that has a requirement for a growth factor Prototroph原养型 • The wildtype parent for a nutritional mutation