【摘要】 综述了植物对低温胁迫响应的生化与分子生物学机制 ,即低温信号激活某些抗冻基因的表达 ,产生特异蛋白和渗透调节物质 ,使植物抗氧化胁迫能力和渗透调节能力提高 ,保护了植物细胞。而植物抗寒性的提高决定于抗冻基因的表达 ,如何通过分子生物学手段提高植物抗冻基因表达的效应是培育植物抗寒品系的关键。并展望了该领域今后研究的方向。更多还原

【Abstract】 The signs of low temperature activate the expression of some freezing tolerant genes of plant and the contents of specific proteins and osmotic adjustment substances are raised,all of which elevate the antioxidant capacity and the osmotic adjustment capacity and protect the plant cells,thus the expression of some freezing tolerant genes is the determinant of the antifreeze capacity,so it is critical for breeding antifreeze traits that enhances the level of the expression of freezing tolerant genes. Finally,the view of this domain in future is presented.更多还原