| 长白楤木根结构研究 |
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| 引用本文： | 刘秀岩,梁宇,朱俊义. 长白楤木根结构研究[J]. 通化师范学院学报, 2010, 31(4): 39-41 |
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| 作者姓名： | 刘秀岩 梁宇 朱俊义 |
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| 作者单位： | 1. 北华大学,林学院,吉林,吉林,132013;通化师范学院,生物系,吉林,通化,134002
2. 通化师范学院,生物系,吉林,通化,134002 |
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| 摘 要： | 利用扫描电子显微镜技术，观察长白楤木（Aralia contunentalis Kitag）根的结构及发育过程，结果发现其根的增粗生长由维管形成层活动形成的次生木质部和次生韧皮部组成；在次生结构中维管射线有4—5细胞宽，射线细胞内含有大量淀粉粒；次生木质部横切面可见导管散生或形成管孔团、径向复管孔，径向切面和切向切面可见导管分子壁有孔纹、梯纹、网纹增厚；在次生木质部和次生韧皮部中的薄壁细胞内含有大量的淀粉粒；在次生韧皮部中含有分泌道；其周皮结构完整．
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| 关 键 词： | 长白楤 根 次生结构 |
Research on Root Structure of Aralia Contunentalis Kitag |
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| LIU Xiu-yan,LIANG Yu,ZHU Jun-yi. Research on Root Structure of Aralia Contunentalis Kitag[J]. Journal of Tonghua Teachers College, 2010, 31(4): 39-41 |
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| Authors: | LIU Xiu-yan LIANG Yu ZHU Jun-yi |
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| Affiliation: | LIU Xiu-yan1,2,LIANG Yu1,ZHU Jun-yi2(1.Forestry College of Beihua University,Jilin,Jilin 132013,China,2.Department of Biology,Tonghua Normal University,Tonghua,Jilin 134002,China) |
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| Abstract: | The root structure and growth process of Aralia contunentalis Kitag were observed by scanning electron microscope.The results showed that the thickening growth of its root was formed by the secondary xylem and secondary phloem;the vascular ray were 4-5 cells wide in the secondary structure,and a large number of starch grains were contained in the ray cells;the pore cluster and radial pore multiple origined from vessel were seen in the cross-section of secondary xylem,the pit marking,scalariform marking and ... |
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| Keywords: | Aralia contunentalis Kitag root secondary structure |
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