| 大花君子兰营养器官的解剖学结构 |
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| 引用本文： | 孙建云.大花君子兰营养器官的解剖学结构[J].江苏农业学报,2005,21(4):364-368. |
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| 作者姓名： | 孙建云 |
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| 作者单位： | 南京农业大学生命科学学院,江苏,南京,210095 |
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| 基金项目： | 江苏省应用基础研究(BJ99033) |
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| 摘 要： | 对大花君子兰营养器官根和叶片的解剖学结构观察结果显示:其不定根为肉质,具有发达的复表皮,复表皮最内层细胞具有分生组织细胞,向外分裂形成新的细胞;根尖组织分化属封闭型,根冠与表皮同源,根内皮层细胞具凯氏带加厚,初生本质部多原型。叶为等面叶,叶片上、下表皮细胞外壁均被有厚的角质层,气孔器的保卫细胞为肾形,具有发达的储水组织;叶肉细胞同型,无栅栏细胞和海绵组织的分化;平行脉序,维管束具有维管束鞘。
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| 关 键 词： | 大花君子兰 营养器官 解剖结构 |
| 文章编号： | 1000-4440（2005）04-0364-05 |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005年3月8日 |
Anatomy of Vegetative Organs of Clivia miniata Reg. |
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| SUN Jian-yun.Anatomy of Vegetative Organs of Clivia miniata Reg.[J].Jiangsu Journal of Agricultural Sciences,2005,21(4):364-368. |
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| Authors: | SUN Jian-yun |
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| Institution: | College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China |
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| Abstract: | Anatomical structure of vegetative organs(roots and leaves) of Clivia miniata were observed.The results showed that adventitious roots are fleshy with a developed compound epidermis;the innermost layer of epidermis is full of meristematic cells which divide themselves outwardly;differentiation of root tip belongs to a closed type;root cap and epidermis originate from the same promeristematic layer;the endodermis of the root has a casparian strip and primary xylem belongs to polyarchy.Leaves are iso-bilateral leaves;the outer walls of cells of upper epidermis and lower epidermis are covered with thick cuticle membrane;the guard cells of stomatal apparatus looks like kidney shapes;the leaves have developed water-storage tissue;there is no differentiation among mesophyll cells(no differentiation of palisade tissue and spongy tissue). The veins of leaves are parallel,and the vascular bundles have bundle sheaths. |
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| Keywords: | Clivia miniata vegetative organ anatomical structure |
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