六种沉香属植物叶片解剖结构研究

为比较沉香属不同种植物间的叶片形态解剖特征,将不同来源的六种沉香属植物在海南省兴隆南药园种植,运用石蜡切片法和撕片法对其成熟叶片的解剖特征进行观察,并对叶片的上下表皮,叶脉和叶横切面等12项数量性状进行统计分析。结果表明：六种沉香属植物叶片解剖结构基本一致,均为典型的异面叶,由表皮、叶肉和叶脉组成,表现出典型的旱生形态特点。表皮细胞单层,气孔微下陷,仅分布在下表皮,上下表皮上零星分布着表皮毛。叶肉组织发达,栅栏组织由1~2层排列紧密地圆柱状细胞组成,其间分布着大量的长方晶体,海绵组织内有一层排列较整齐,染色较深的异细胞组成的下皮层。主脉维管束双韧型,呈圆环状,内含大量异细胞。方差分析表明,除栅...

Full description

Saved in:
Bibliographic Details
Published in广西植物 Vol. 37; no. 5; pp. 565 - 571
Main Author 刘培卫 张玉秀 杨云 陈波
Format Journal Article
LanguageChinese
Published 中国医学科学院 北京协和医学院药用植物研究所海南分所 海南省南药资源保护与开发重点实验室,海口,570311 2017
Subjects
叶片
比较解剖学
沉香
沉香属
沉香属
anatomical structure
叶片
Aquilaria
leaf
agarwood
沉香
比较解剖学
Online AccessGet full text
ISSN1000-3142
DOI10.11931/guihaia.gxzw201603015

Cover

More Information
Summary:为比较沉香属不同种植物间的叶片形态解剖特征,将不同来源的六种沉香属植物在海南省兴隆南药园种植,运用石蜡切片法和撕片法对其成熟叶片的解剖特征进行观察,并对叶片的上下表皮,叶脉和叶横切面等12项数量性状进行统计分析。结果表明：六种沉香属植物叶片解剖结构基本一致,均为典型的异面叶,由表皮、叶肉和叶脉组成,表现出典型的旱生形态特点。表皮细胞单层,气孔微下陷,仅分布在下表皮,上下表皮上零星分布着表皮毛。叶肉组织发达,栅栏组织由1~2层排列紧密地圆柱状细胞组成,其间分布着大量的长方晶体,海绵组织内有一层排列较整齐,染色较深的异细胞组成的下皮层。主脉维管束双韧型,呈圆环状,内含大量异细胞。方差分析表明,除栅海比外,叶片厚度、叶脉条数、主脉厚度等其余11项数量指标在六种植物间差异均达到显著水平。聚类分析将这六种植物聚成3类,Aquilaria sinensis（白木香）,A.crassna和A.banaensis聚为一类,A.baillonii和A.malaccensis聚为一类;A.yunnanensis（云南沉香）单独为一类。该研究结果为沉香属植物的物种鉴定提供了解剖学依据,同时对沉香属植物合理开发利用具有重要意义。
Bibliography:Agarwood is a resin wood, which formed in the stem of Aquilaria and may represent the most prized non-tim!〉er forest product, which can be used in fragrances, incense, medicines, aromatherapy, and religious ceremonies. Aquilaria is an endangered genus due to the excessive exploitation of its precious agarwood, while not all Aquilaria species can produce agarwood effectively or different Aquilaria species produce agarwood with distinctive fragrances and price. Hierefore, it is an important task to improve the identification methods of Aquilaria species. 1n order to identify the Aquilaria species, the leaf anatomical structures of selected Aquilaria species were compared in this study. The mature leaves of the six Aquilaria spe-cies （Thymelaeaceae） wrere studied with light microscopy and paraffin sectioning, and twelve quantitative traits of the leaves were measured and analyzed. The result showed that the leaf structures of six Aquilaria species were similar. All leaves showed the xerophytic feature. All leave
ISSN:1000-3142
DOI:10.11931/guihaia.gxzw201603015