摘要： 电子显微镜观察结果表明，山葡萄与玫瑰香的叶片及根系细胞亚显微结构无明显差异。在2±1℃低温胁迫条件下，山葡萄叶绿体稳定性强，而玫瑰香叶绿体片层结构排列方向明显改变，但被膜仍保持完整。山葡萄和玫瑰香根系细胞中的线粒体内嵴受到不同程度的破坏，粗面内质网上的核糖体有脱落现象，细胞质内产生了一些空泡，但细胞核无明显变化。

关键词: 低温胁迫, 葡萄, 叶, 根, 细胞亚显微结构

Abstract: The observation result under transmission electron microscope showed that the ultrastructure had no visible difference in the root and leaf cells of grape between different species.During the growing season,we found that the structure of chloroplast in leaf cells of V.amurensis Rupr.was more stable than Mascate Hamberg under the chilling stress condition(2℃±1℃).Meanwhile,the cellular ultrastructure of Mascate Hamberg showed significant changes in leaf.Parallel arrangement of the lamellae in chloroplast was altered,but the chloroplast envelope was still intact.Furthermore,mitochondria cristae were both disrupted to some extent,and ribosomes of rough endoplasm reticulum dropped off,a lot of vesicles were formed in cytoplasm,but nuclei was relative stabe in the root tip cells of V.amurensis Rupr.and Mascate Hamberg.

Key words: Chilling stress, Grape, Leaf, Root, Cellular ultrastructure

中图分类号: 

• S663.101