The mechanisms of enhanced plant resistance to copper and lead toxicity by arbuscular mycorrhizal colonization

摘要：

Pot culture experiments were conducted to investigate the mechanisms of enhanced plant resistance to heavy metals by arbuscular mycorrhizal (AM) colonization. The results indicated that: 1) colonization by AM fungi can decrease the translocation of Cu and Pb from the roots to the shoots of Oryza sativa L.;2) improved P nutrition of Oryza sativa L. by the colonization of Glomus mosseae contributed to the enhanced resistance of plants to combined heavy metal contamination;3) AMF colonization could decrease DNA damages in plants induced by heavy metals;4) cell walls retained the majority of Cu adsorbed by roots and decreased Cu influx into symplast of mycorrhizal Oryzal sativa L.

关键词： arbuseular mycorrhhiza Oryza sativa Vicia faba Glomus heavy metals

作者: X. H. Zhang A. J. Lin B. D. Chen Y. G. Zhu

作者单位: Beijing City University, Beijing 100083, China Research Center for Eco-Environmental Sciences, Chine Department of EnvironmentalEngineering, Beijing University of Chemical Technology, Beiiing 100029, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 568-569

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）