| 水分胁迫对甘草营养器官解剖构造的影响 |
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| 引用本文： | 彭伟秀,王文全,梁海永,王进茂,吴京民,刘长利.水分胁迫对甘草营养器官解剖构造的影响[J].河北农业大学学报,2003,26(3):46-48. |
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| 作者姓名： | 彭伟秀 王文全 梁海永 王进茂 吴京民 刘长利 |
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| 作者单位： | 1. 河北农业大学,河北,保定,071000
2. 北京中医药大学,北京,100000 |
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| 基金项目： | 国家自然科学基金资助项目 (30 171 1 4 1 ) |
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| 摘 要： | 以2年生甘草盆栽实生苗为材料，研究了水分胁迫对甘草营养器官解剖构造的影响。结果表明：一定时期水分胁迫后的植株成龄叶片变薄，栅栏组织变薄，即栅／海比值变小，叶脉中的导管和根及茎的木质部导管均表现为导管管腔直径变小，管壁增厚。这些器官内部结构的不同变化都是适应逆境、增强抗性所做出的响应。
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| 关 键 词： | 水分胁迫 甘草 营养器官 解剖构造 影响因素 中药材 |
| 文章编号： | 1000-1573(2003)03-0046-03 |
| 修稿时间： | 2002年10月25 |
The effect of water stress on the microstructure of Glycyrrhica uralensis |
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| PENG Wei-xiu ,WANG Wen-quan ,LIANG Hai- yong ,WANG Jin-mao WU Jing-min ,LIU Chang-li.The effect of water stress on the microstructure of Glycyrrhica uralensis[J].Journal of Agricultural University of Hebei,2003,26(3):46-48. |
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| Authors: | PENG Wei-xiu WANG Wen-quan LIANG Hai- yong WANG Jin-mao WU Jing-min LIU Chang-li |
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| Institution: | PENG Wei-xiu 1,WANG Wen-quan 2,LIANG Hai- yong 1,WANG Jin-mao 1 WU Jing-min 1,LIU Chang-li 1 |
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| Abstract: | The experiment used the seedling-plants of Glycyrrhica uralensis that grow in the flowerpots for two years to stu dy the effect of water stress on the microstructure of the vegetative organs of G uralensis. The result showed tha t some changes took place after a period of water stress: grown blade become thi nner, the ratio of palisade tissue to blade changed lower in different degree, t he ratio of palisade tissue to spongy tissue changed lower, the wall of xylem ve ssel in vein of the blades, stems and roots become thicker. These changes of the organs microstructure are the respondence to adapt to the stress. It will reinf orce the resistance. |
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| Keywords: | Glycyrrhica uralensis water st ress microstructure |
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