Auxin distribution and transport during embryogenesis and seed germi-nation of Arabidopsis

作     者：NI DI AN, LING JIAN WANG, CHUN HONG DING, ZHI HONG XU, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China College of Bioscience, East China Normal University, Shangha NI DI AN, LING JIAN WANG, CHUN HONG DING, ZHI HONG XU, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China College of Bioscience, East China Normal University, Shangha

作者机构：Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai China University of Potsdam Institute of Biochemistry and Biology AG Molecular-Biology Hause Germany College of Bioscience East China Normal University Shanghai China Shanghai Experimental School of Elementary Education Shanghai China College of Life Sciences Peking University Beijing China 

出 版 物：《Cell Research》 (细胞研究(英文版))

年 卷 期：2001年第11卷第4期

页      面：273-278页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 

主　　题：Auxin auxin distribution auxin polar transport auxin-responsive promoter transgenic Ara- bidopsis. 

摘      要：Auxin distribution during embryogenesis and seed germination were studied with transgenic Arabidopsis plants expressing GUS gene driven by a synthetic DR5 promoter,an auxin responsive promoter. The results showed that GUS activity is higher in ends of hypophysis and cotyledon primordia of heart-, torpedo- and cotyledon-stage embryos, leaf tip area, lateral root primordia, root apex and cotyledon of young seedlings. And GUS accumulated in root apex of the seedlings grown on auxin transport inhibitor containing media. All these suggested that above-mentioned part of the organs and tissues have a higher level of auxin, and auxin polar transport inhibitor could cause the accumulation of auxin in root apex. And auxin transport inhibitor also resulted in aberration of Arabidopsis leaf pattern formation, root gravitropism and elongation.