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干旱条件下小麦幼苗根膜脂总脂肪酸含量、磷脂含量及总脂肪酸双键指数均下降，而游离甾醇含量却明显增加，结果导致游离甾醇／磷脂比率上升。用薄层层析法测得小麦根细胞磷脂主要由磷脂酰胆碱（ＰＣ）、磷脂酰乙醇胺（ＰＥ）、磷脂酰肌醇（ＰＩ）及磷脂酸（ＰＡ）组成。干旱降低了各种磷脂的含量，但不改变其相对配比。文中讨论了膜脂代谢变化与植物抗旱性的关系
Under dry conditions, the total fatty acid content, phospholipid content and total fatty acid double bond index of wheat seedling decreased, while the content of free sterol increased significantly, resulting in the increase of free sterol / phospholipid ratio. The root cell phospholipids were mainly composed of phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylinositol (PI) and phosphatidic acid (PA) measured by TLC. Drought reduced the content of various phospholipids but did not change their relative proportions. The paper discusses the relationship between membrane lipid metabolism and plant drought resistance