草业科学2012，Vol.29Issue(3)：429-433,5.
扁穗冰草营养器官的解剖学研究
A study on anatomy of vegetative organs of Agropyron cristatum
摘要
Abstract
Anatomical observation was carried out on vegetative organs of Agropyron cristatum,including roots,stems,leaf and rhizomes,in this study.The results indicated that in order to adapt to a long-term external dry environment,the vegetative organs of A.cristatum formed drought-specific morphological structures.The walls of endodermal cells of roots were thickened and the cells showed horseshoe shapes.The cortex cells near the endodermis systematically arranged in two rings,but cell walls were not thickened.The epidermal cells of stems arranged compactly and were horny thickening.Upper and lower epidermal cells of leaves had ell-developed horny layers and vascular bundles;and the sheath of vascular bundles was a typical plant structure of C3.Rhizomes were consisted of epidermis,basic tissues and vascular bundles.The structure of rhizomes was similar to that of stems.The epidermal cells had no epidermal hairs and attachment structures.The vascular bundles distributed in the basic tissues,of which the vascular bundles near the epidermis arranged in a circle regularly but the others distributed irregularly.关键词
扁穗冰草/营养器官/解剖结构Key words
Agropyron cristatum/vegetative organ/anatomical structure分类
农业科技引用本文复制引用
高海娟,云锦凤,罗新义,柴凤久,刘泽东,尤海洋..扁穗冰草营养器官的解剖学研究[J].草业科学,2012,29(3):429-433,5.基金项目
基金项目：973项目“冰草远缘杂交遗传基础及种质创新的研究” （）
国家自然科学基金“蒙古冰草抗旱相关基因克隆、表达及功能分析” （）
