植物研究2017，Vol.37Issue(5)：645-650,6.DOI:10.7525/j.issn.1673-5102.2017.05.002
海南龙血树的形态组织学研究
Anatomic Study of Dracaena cambodiana Pierre ex.Gagnep
摘要
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.关键词
海南龙血树/组织学/解剖学Key words
Dracaena cambodiana Pierre ex.Gagnep/histology/anatomy分类
农业科技引用本文复制引用
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):645-650,6.基金项目
中医药行业科研专项(201407005)Traditional Chinese Medicine Industry Special Project(201407005) （201407005）
