| 木藤蓼次生木质部解剖及其生态适应性 |
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| 引用本文： | 扆铁梅.木藤蓼次生木质部解剖及其生态适应性[J].山西农业大学学报(自然科学版),2007,27(3):225-228. |
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| 作者姓名： | 扆铁梅 |
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| 作者单位： | 山西农业大学,林学院,山西,太谷,030801 |
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| 基金项目： | 山西省青年学科带头人培养基金;山西农业大学科研基地项目 |
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| 摘 要： | 以木藤蓼为研究对象,利用显微镜和电镜对其次生木质部进行了解剖研究。结果表明,木藤蓼次生木质部解剖特征主要为:生长轮不明显;散孔材;复空率高;单穿孔;管间纹孔互列;具有宽窄两种类型导管并成组;窄导管具有附物纹孔和螺纹加厚,并叠生。射线主为多列,高达8 mm;射线细胞内具簇状和菱形晶体。木藤蓼与蓼科木本种类具有较为接近的结构,对旱生环境具有高度的适应性。
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| 关 键 词： | 木藤蓼 次生木质部 结构 生态适应性 |
| 文章编号： | 1671-8151（2007）03-0225-04 |
| 收稿时间： | 2007-01-01 |
| 修稿时间： | 2007-01-01 |
Stem Secondary Xylem of Fallopia Aubertii and its Ecological Adaptability |
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| YI Tie-mei.Stem Secondary Xylem of Fallopia Aubertii and its Ecological Adaptability[J].Journal of Shanxi Agricultural University,2007,27(3):225-228. |
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| Authors: | YI Tie-mei |
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| Institution: | College of Forestry, Shaixi Agricultural University, Taigu Shanxi 030801, China |
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| Abstract: | The anatomical structure of was studied under light microscope and scanning electron microscope.The main characters of the secondary xylem are as follows: diffuse porous with indistinct growth ring;vessels in cluster; vessels with two distinct diameter classes;simple perforation plates;intervessel pits alternate;narrow vessels with vestured pits and helical thickenings;narrow vessel storied;ray dominantly multiple with 8 mm height;prismatic crystals and druses present in ray cells.The secondary xylem of Fallopia aubertii has relatively similar structure with other woody species of Polygonaceae and highly ecological adaptability to dry environment. |
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| Keywords: | Fallopia aubertii Stem secondary xylem structure ecological adaptability |
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