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园艺学报 ›› 2006, Vol. 33 ›› Issue (2): 429-432.

• 研究简报 • 上一篇    下一篇

盐胁迫下百合两个品种的叶绿体和线粒体超微结构比较

左志锐1, 2, 3;高俊平2;穆 鼎1*;刘 春1   

  1. (1 中国农业科学院蔬菜花卉研究所, 北京100081; 2 中国农业大学观赏园艺与园林系, 北京100094; 3 连云港职业技术学院, 连云港222006)
  • 收稿日期:2005-08-26 修回日期:2006-01-04 出版日期:2006-04-25 发布日期:2006-04-25

A Comparative Electron Microscopic of Ultra Structure in Different Lily Cultivars under Salt Stress

Zuo Zhirui1, 2, 3;Gao Junping2;Mu Ding1*;Liu Chun1   

  1. (1 Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2Department of Ornamental Horticulture, China Agriculture University, Beijing 100094, China; 3 The Vocational College of Lianyungang, Lianyungang 222006, China)
  • Received:2005-08-26 Revised:2006-01-04 Online:2006-04-25 Published:2006-04-25

摘要: 对两个百合品种盐胁迫下超微结构的变化进行了研究分析。结果表明: ‘Prato’对照和低盐
浓度处理下, 叶肉细胞内细胞器丰富, 叶绿体片层排列整齐, 高盐处理导致细胞器减少, 叶绿体解体; 而‘Sorbonne’在低盐处理水平表现异常, 其细胞器降解, 叶绿体空化, 片层排列松散, 且两品种的线粒体较叶绿体早表现出异常, 故推测可能是线粒体结构的损伤进而功能丧失, 最终导致叶绿体结构和功能的破坏,叶片提前衰老。

关键词: 百合, 盐胁迫, 超微结构

Abstract: The cytological development of leaves of salt-tolerance cultivar‘Prato’and combined salt-sensitive cultivar Sorbonne in Lilium, stressed with different concentration of salinity, was studied using transmission electron microscope. The results indicated that under the control and low NaCl concentration, leaves
of Prato were abundant with organelles, the lamellae were lined regularly, with the increase of salt concentration, the number of organelles decreased, the chlorop lasts degenerated. In contrast to Prato, leaves of Sorbonne showed abnormal behaviors under low NaCl concentration, including degenerated organelles, vacuolated chloroplasts and the loosened lamellae. In addition, mitochondria began to degenerate prior to chloroplasts. It is inferred that degeneration of chloroplasts contributed to the ultra structure of degeneration of mitochondria, which further leading to senescence of leaves.

Key words: Lilium ssp., Salt stress, Ultra structure