Because concentrations of biotin in serum are in the low range of nMol/L,C. albicans probably satisfies its requirenment for biotin in vivo principally via active transport.

• 由于血清中的生物素含量在pMol/L到几个nMol/L之间，白色念珠菌在体内可能通过主动摄取生物素机制满足其营养代谢需求。