海南龙血树的形态组织学研究

doi:10.7525/j.issn.1673-5102.2017.05.002

植物研究 ›› 2017, Vol. 37 ›› Issue (5): 645-650.doi: 10.7525/j.issn.1673-5102.2017.05.002

海南龙血树的形态组织学研究

刘培卫^1,2, 张玉秀^1,2, 何明军^1,2

1. 中国医学科学院药用植物研究所海南分所, 海口 570311;
2. 海南省南药资源保护与开发重点实验室, 海口 570311

收稿日期:2017-03-09 出版日期:2017-09-15 发布日期:2017-09-15
通讯作者: 何明军,E-mail:hmj2008@163.com E-mail:hmj2008@163.com
作者简介:刘培卫(1983-),男,助理研究员,主要从事南药植物结构和活性成分研究。
基金资助:
中医药行业科研专项（201407005）

Anatomic Study of Dracaena cambodiana Pierre ex. Gagnep

LIU Pei-Wei^1,2, ZHANG Yu-Xiu^1,2, HE Ming-Jun^1,2

1. Hainan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311;
2. Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Haikou 570311

Received:2017-03-09 Online:2017-09-15 Published:2017-09-15
Supported by:
Traditional Chinese Medicine Industry Special Project(201407005)

摘要/Abstract

摘要： 采用植物解剖学、显微切片技术等，分别对海南龙血树含有树脂的茎、不含树脂的茎、幼根和叶片等进行了系统的组织学研究。结果表明：老茎主要由栓化层、皮层、形成层和基本组织4部分组成，树脂主要分布在基本组织内维管束的导管和纤维中。叶片为等面叶，气孔主要分布在下表皮上、具有明显的孔下室，上下表皮内侧分布着大量的纤维束。幼根由根被细胞、皮层和维管柱组成。根、茎、叶的部分薄壁细胞中均含有晶束。海南龙血树营养器官的结构特征与干旱、高温和贫瘠的生态环境相适应。这些结果可为海南龙血树的开发和利用提供基本的解剖学证据。

关键词: 海南龙血树, 组织学, 解剖学

Abstract: The morphological characteristics of the stems(with or without resin), young roots and leaves of Dracaena cambodiana Pierre ex. Gagnep were observed by traditional paraffin section and photomicrographic technique. Old stems mainly four parts, suberizative layer, cortex, cambium and basic tissue. The resin was mainly distributed in the vessels and fibers of vascular bundles in the basic tissue. Isolateral leaf, and stomata with a clear substomatic chamber were mainly distributed in the lower epidermis, a lot of fiber bundles in the upper and lower epidermis. The structure of younger roots consisted of velamen, cortex and central cylinder. Some parenchyma cells of root, stem and leaf containing calcium oxalate crystal bundle. The structural characteristics of nutritive organs suggested that the plant might adapt to the drought, high temperature and infertile environment. These results can provide the basic anatomical evidence for the development and utilization of D.cambodiana.

Key words: Dracaena cambodiana Pierre ex. Gagnep, histology, anatomy

中图分类号:

Q944.5

刘培卫, 张玉秀, 何明军. 海南龙血树的形态组织学研究[J]. 植物研究, 2017, 37(5): 645-650.

LIU Pei-Wei, ZHANG Yu-Xiu, HE Ming-Jun. Anatomic Study of Dracaena cambodiana Pierre ex. Gagnep[J]. Bulletin of Botanical Research, 2017, 37(5): 645-650.

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海南龙血树的形态组织学研究

Anatomic Study of Dracaena cambodiana Pierre ex. Gagnep

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