| 大黄蒽醌类化合物的组织化学定位研究 |
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| 引用本文： | 刘文哲,张爱新.大黄蒽醌类化合物的组织化学定位研究[J].西北植物学报,2000,20(6):1082-1085,T007. |
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| 作者姓名： | 刘文哲 张爱新 |
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| 作者单位： | 1. 西北大学生命科学学院,西安,710069
2. 西安中药集团北郊公司,西安,710021 |
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| 基金项目： | 陕西省教委专项基金资助项目 |
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| 摘 要： | 利用新鲜材料的秆手切片直接观察，５％ＮａＯＨ水溶液显色、荧光显微镜观察和戊二醛及饿酸固定薄切片法对大黄根茎蒽醌类化合物进行了组织化学定位研究。结果发现大黄根茎内蒽醌类化合物主要积累在次生木质部的木射线和次生韧皮部的韧皮射线细胞中。根据显色程度的不同，可以判断早期形成的维管射线细胞蒽醌类化合物的含量较晚期形成的射线细胞的含量高，二年生根茎的含量高于一所生根茎的含量。
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| 关 键 词： | 大黄 根茎 组织化学 蒽醌类化合物 |
Histochemical localization of anthraquinones in rhizome of Rheum officinale Bail |
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| LIU Wen zhe\,ZHANG Ai xin\.Histochemical localization of anthraquinones in rhizome of Rheum officinale Bail[J].Acta Botanica Boreali-Occidentalia Sinica,2000,20(6):1082-1085,T007. |
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| Authors: | LIU Wen zhe\ ZHANG Ai xin\ |
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| Abstract: | Localization of anthraquinones was investigated in rhizome of Rheum officinale with 5% NaOH solution coloring,fluorescence microscopy,and semi thin section method were fixed in glutaraldehyde and OsO 4.Anthraquinones were located in the vascular ray of secondary phloem and secondary xylem.Mature ray cells showed deeper color than immature ray cells,it suggested that anthraquinones content were higher in mature ray cells than in immature ray cells,and higher in biennial rhizome than in annual rhizome. |
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| Keywords: | Rheum officinale Bail rhizome histochemistry anthraquinones |
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