The Endodermis Is the Major Control Point for Radial Transport of Humic Substances into the Vascular System of Plants

摘要：

　　In order to understand humic substance (HS) uptake by plants and its entrance into the plant vascular system a microautoradiography approach using tritium labeled HS was applied.Wheat seedlings were used as test plants.The data obtained clearly demonstrated preferential radial transport of HS by the apoplastic pathway.Epidermal and cortex cells did not remove significant proportions of humic substances,and the endodermis was shown to be the major control point for their radial transport.

关键词： Interaction with plants Vascular system Autoradiography Tritium Endodermis Apoplastic way

作者: N.A.Kulikov D.P.Abroskin A.S.Beer G.A.Badun M.G Chemysheva V.I.Korobkov I.V.Perminova

作者单位: Department of Soil Science,Lomonosov Moscow State University,Moscow,Russia;Bach Institute of Biochem Department of Soil Science,Lomonosov Moscow State University,Moscow,Russia Department of Biology,Lomonosov Moscow State University,Moscow,Russia Department of Chemistry,Lomonosov Moscow State University,Moscow,Russia

会议类型: 国际会议

会议名称: the 16th Meeting of the International Humic Substances Society (第十六届国际腐殖物质学会大会(IHSS 16))

会议地点: 杭州

会议语种:英文

页码: 491-492

在线出版日期: 2012-09-09（万方平台首次上网日期，不代表论文的发表时间）