摘要
通过对 2 0 0 mmol/ L Na Cl处理下的杂交酸模叶、根尖细胞电镜观察研究发现 ,盐处理 2周后 ,叶肉细胞叶绿体受到不同程度的破坏 ,类囊体排列紊乱、肿胀 ,基料片层和基质片层模糊不清 ,甚至出现完全解体现象。线粒体结构受到伤害 ,被膜残缺不全。细胞质中发现多数染色很深的似蛋白复合体和体积较大的液泡 ,液泡内含有因盐胁迫而产生的膜系统片段。盐胁迫下的根细胞核膜膨胀 ,模糊不清 ;线粒体数目增多 ;细胞壁不规则加厚 ;同时也发现内含内膜片段的大液泡。
Hybrid rumex ( Rumex patientia×tianshanicus) was treated with 200 mmol/L NaCl for two weeks and then the changes in the ultrastructure of its leaf and root cells were observed. It was found that chloroplasts in leaf cells were damaged to a varying extent, thylakoids became swollen and disordered, grana lamellae and stroma lamellae appeared to be obscured or even completely disparted and the structure of mitochondria was also damaged. In root cells, nuclear membranes appeared obscure, cell walls became thicker and the number of mitochondria increased and their membranes also became obscure for observation. Some heavily dyed bodies were observed in leaf cytoplasm and large vacuoles were found in both leaf and root cells.
出处
《草业学报》
CSCD
2000年第2期53-57,共5页
Acta Prataculturae Sinica
基金
国家"九五"攻关项目!"环渤海低平原现代化高效农业持续发展研究"(96 - 0 4- 0 1 - 0 6 )的部分内容
关键词
超微结构
杂交酸模
叶绿体
线粒体
cell ultrastructure
hybrid rumex
chloroplast
mitochondrion
