| 干旱逆境下小麦幼苗细胞叶绿体内钙离子浓度变化的电镜细胞化学研究 |
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| 引用本文： | 王凤茹,张晓红. 干旱逆境下小麦幼苗细胞叶绿体内钙离子浓度变化的电镜细胞化学研究[J]. 电子显微学报, 2002, 21(2): 106-109 |
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| 作者姓名： | 王凤茹 张晓红 |
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| 作者单位： | 1. 河北农业大学生命科学学院,河北,保定,071001
2. 河北保定市农业局,河北,保定071051 |
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| 摘 要： | 采用改进的焦锑酸钙沉淀的细胞化学方法，探讨了在干旱逆境条件下叶绿体与Ca^2 水平变化的关系。结果表明：在正常水分下生长的小麦幼苗，其叶绿体中含有少量Ca^2 ；水分胁迫24、48h，叶绿体膜上密布Ca^2 ；随着胁迫时间的增加，叶绿体超微结构受到的伤害越发严重，最后解体。
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| 关 键 词： | 幼苗细胞 叶绿体 钙离子浓度 细胞化学 小麦 干旱逆境 电子显微镜 电镜观察 |
| 文章编号： | 1000-6281(2002)02-0106-04 |
Cytochemistry of Ca2+ in the chloroplast of the wheat seedling under water stress |
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| WANG Feng ru ,ZHANG Xiao hong. Cytochemistry of Ca2+ in the chloroplast of the wheat seedling under water stress[J]. Journal of Chinese Electron Microscopy Society, 2002, 21(2): 106-109 |
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| Authors: | WANG Feng ru ZHANG Xiao hong |
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| Affiliation: | WANG Feng ru 1,ZHANG Xiao hong 2 |
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| Abstract: | The ultrastructural localization of calcium in the chloroplast of the wheat seedling under water stress was examined by the improved calcium antimonate precipitation technique. The results obtained showed that there was a little calcium in chloroplast under normal water condition; after the stress of 24, 48h,there was a lot of Ca 2+ on the membrane of the chloroplast. The longer the duration of water stress, the injure of ultrastructure in chloroplast was more serious, at last, the chloroplast disintegrate. |
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| Keywords: | wheat chloroplast Ca 2+ water stress |
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