文献类型：期刊文献

中文题名：珍稀植物扇脉杓兰营养器官的解剖学研究

英文题名：Vegetative Anatomy of the Rare Plant Cypripedium japonicum Thunb.

作者：钱鑫[1] 李全健[2] 连静静[1] 王彩霞[1] 田敏[1]

第一作者：钱鑫

机构：[1]中国林业科学研究院亚热带林业研究所;[2]中国科学院上海辰山植物科学研究中心

年份：2013

卷号：33

期号：5

起止页码：540-545

中文期刊名：植物研究

外文期刊名：Bulletin of Botanical Research

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：浙江省省院合作林业项目(2012SY02-3)

语种：中文

中文关键词：扇脉杓兰;营养器官;解剖结构

外文关键词：Cypripedium japonicum Thunb. ; vegetative organ ; anatomical structure

分类号：S682.31

摘要：采用石蜡切片技术对扇脉杓兰营养器官的解剖结构进行了研究。结果表明:根状茎的薄壁细胞中含丰富的淀粉粒,维管柱中分布着排列紧凑的周木维管束;根的皮层发达,有的皮层细胞中存在真菌菌丝团,木质部与韧皮部呈辐射状相间排列,根和根状茎的内皮层细胞都形成马蹄形加厚结构。茎的表面分布气孔,皮层面积较小,皮层内部的基本组织发达,外韧维管束散生分布其中,茎和叶上都附有非腺性毛;叶为等面叶,叶肉细胞排列疏松,气孔主要分布于远轴面,略外凸,保卫细胞中含有叶绿体,叶缘处的叶肉组织中含有气腔结构。扇脉杓兰营养器官的这些特征与其荫蔽湿润的生境是相适应的。
The anatomical structure of vegetative organs of endangered plant Cypripedium japonicum Thunb. were studied by means of paraffin sections. The results show that a large number of starch granules exist in the parenchyma cells of rhizomes, amphivasal bundles are distributed compactly in the vascular cylinder; the cortex covers most of the root cross-section, radially arranged groups of xylem and phloem alternate with each other in vascular cylinder, mycorrhizal fungi form pelotons in the cortical cells, the endodermis cells in both rhizome and root show horseshoe -- shaped thickening; stomates occur on the surface of the stem, the cortex is relatively narrow, but the inside ground parenchyma is well developed, and collateral bundles are distributed scatteredly through it, nonglandular triehomes are associated with the surface of the stems and leaves; the leaves are isobilateral, mesophyll cells are arranged loosely, stomata which are mostly found on the abaxial surfaces extruded slightly outside the epidermis, chloroplasts and air cavities are found respectively in the guard cell and mesophyll of leaf margin. The anatomical characteristics mentioned above are adapted to their living environment.