Changes in the Vascular Cylinder of Wild Soybean Roots Under Alkaline Stress

作     者：NIU Lu LU Jing-mei WU Dong-mei LI Yan GAO Ting-ting 

作者机构：School of Life SciencesNortheast Normal University Qinghai Key Laboratory of Tibetan Medicine Pharmacology and Safety EvaluationNorthwest Institute of Plateau BiologyChinese Academy of Sciences 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2014年第13卷第10期

页      面：2164-2169页

核心收录：

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 09[农学] 0901[农学-作物学] 

基　　金：financially supported by the National Natural Science Foundation of China(41271231) 

主　　题：Glycine soja Sieb. et Zucc alkaline stress anatomical structure tetrarch condition of vascular cylinder triarchcondition of vascular cylinder 

摘      要：Changes in the vascular cylinder of wild soybean （Glycine soja Sieb. et Zucc） roots under alkaline stress were investigated in an experiment that applied 90 mmol L1 alkaline stress for 10 d at the five-trifoliate plant growth stage in Huinan County, Jilin Province, China. Root samples were collected and paraffin-cut sections were made, and the root structure was observed under an optical microscope. There were significant changes in the vascular cylinder of G. soja roots under alkaline stress. Root diameter was reduced and the vascular cylinder changed from tetrarch to triarch pattern. Alkaline stress resulted in reduced, diameters of root vessels, and a large amount of residual, alkaline solution was stained cyaneous in vessels. The paratracheal parenchymatous cells of the vessels were large and there was little secondary xylem. Thus, alkaline stress caused structural changes in the vascular cylinder of G. soja.