转基因改良植物的胁迫耐性

摘要

Plant productivity is greatly influenced by abiotic stresses, such as drought, salinity and low temperature etc. Introduced foreign target genes has been a new way to improve the stress tolerance in crops. Up to date, the transgenes used in improving stress tolerance in plants include the genes encoding superoxide-scavenging enzymes, membrane-modifying enzymes, stress-induced protein and osmolyte-producing enzymes.%干旱、盐碱和低温等逆境是严重影响栽培植物生产的非生物胁迫因素。导入外源目的基因已发展成为改良作物对逆境胁迫耐性的新途径。现今已应用于植物胁迫耐性改良的基因包括编码活性氧清除酶类、膜修饰酶类、胁迫诱导蛋白和渗调物质合成酶等基因。