植物抗渗透胁迫基因工程研究进展

渗透胁迫是影响作物生长、发育和产量最严重的非生物胁迫之一。长期以来,改善作物对渗透胁迫的抗性一直是育种学家们努力的目标。然而,由于渗透胁迫反应是一个极为复杂的过程,通过传统育种取得的成功非常有限。近年来,由于分子生物学的发展,渗透胁迫相关基因的不断发现,人们对植物抗渗透胁迫的分子机理有了更为深入的了解,为植物抗渗透胁迫基因工程奠定了基础。通过渗透胁迫相关基因在植物体内的表达,已获得了一些渗透胁迫抗性提高的转基因植物,展示了诱人的前景。文章对该领域的研究进展作一综述。

Study on transgenic plant of osmotic stress resistance

Osmotic stress is one of the most serious abiotic stresses affect crops growth,development and yields. It is a main target of breeding scientist to improve the osmotic stress resistence of crops. But limited successes were acquired through traditional breeding due to the complexity of osmotic stress reaction. Recently scientists knew more about the molecular mechanism of osmotic stress resistance because of the developing of molecular biology and unceasingly finding of genes related to osmotic stress. All these provided the foundation of plant osmotic stress resistance genetic engineering. Some transgenic plants with higher osmotic stress resistance ability were acquired by transformation of genes related to osmotic stress into plants, which have unfolded an attractive prospect. This paper will highlight the progress in this study.