Drought and soil salinity are the most important environmental factors that affects the normal growth of crop plants. In order to expound the effects of transgene expression on the drought resistance and salt tolerance of plants, here we reviewed the results of production of transgenic plants which overexpressed some low-molecular_weight compounds and osmoprotective proteins reported in recent years.%干旱和盐渍是影响植物生长和农作物产量的最重要的环境因子。本文综述了近年来通过超量表达低分子量化合物和渗透胁迫保护蛋白等获得抗旱耐盐转基因植物的报道，旨在系统阐述转基因表达对植物抗旱耐盐性的影响。
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