In the medium without copper and iron, onlywith ferric citrate , the expression of FDR3 could complement the growth defect of ctrl mutant . CTR1 is a member of high?affinity iron transport system .

• 酵母突变体中铁高亲和系统的成员Ctrl缺失突变，培养基中不供给二价铁和铜，仅以柠檬酸三铁作为唯一的铁源，FDR3基因的表达能够恢复Ctrl突变体在该选择培养基中的表型生长。