auxotrophy，英语单词，主要用作名词，作名词时译为“营养缺陷体；营养缺陷型”。

hypoxanthine auxotrophy 次黄嘌呤营养缺陷型

leucine auxotrophy 亮氨酸缺陷

uracil auxotrophy 尿嘧啶营养缺陷型

growth factor auxotrophy 生长因子营养缺陷现象

aromatic acid auxotrophy 芳香族氨基酸营养缺陷型

shikimic acid auxotrophy 莽草酸营养缺陷型

Methionine synthase is a key enzyme in homocysteine metabolism. The defects of methionine synthase activity could result in hyperhomocysteinemia and methionine auxotrophy.甲硫氨酸合酶是同型半胱氨酸代谢的关键酶，其活性缺失可能会导致同型半胱氨酸蓄积及甲硫氨酸缺陷。