Changes in invertase expression and carbohydrate metabolism of tomato(cv.Ailsa Craig)seedling were studied under hydroponic culture with different level of water stress by 5%,7.5% and 10% PEG treatment,respectively.

• 以栽培番茄品种‘AilsaCraig’的 6叶期幼苗为试材 ；在水培条件下研究了 5%25、 7.；5%25和 1 0%25聚乙二醇 (PEG)水分胁迫对叶片转化酶种类和活性表达及葡萄糖、果糖、蔗糖和淀粉代谢的影响。