文献类型：会议论文

英文题名：Microelement absorption and metals accumulation in barley seedlings under the combined toxicity of cadmium and aluminum

作者：Guo, Tianrong[1]

机构：[1] Life Science Campus, Shaoxing University, Shaoxing, China

会议论文集：Environment Science and Materials Engineering

会议日期：August 4, 2012 - August 4, 2012

会议地点：Wuhan, China

语种：英文

外文关键词：Cadmium - Metallic compounds - Nutrients - Plants (botany) - Tissue - Trace elements

外文摘要：Hydroponic system was used to investigate the interaction between different levels of Cd and Al in barley seedlings. The results showed that stress exposure promoted Al or Cd accumulation in plants, leading to strongly inhibited growth. Concentration- and tissue-dependent responses to Al or Cd stress in barley leaves, stems, and roots were found in four nutrient concentrations. Thus, stress generally inhibited Mg, Zn, and Ca absorption, but increased Fe accumulation and Ca translocation from roots to aboveground parts. Binary metal combinations significantly increased Al levels in plant parts, and aggravated growth inhibition as well as nutrients absorption disorder caused by Al treatments, especially the combination of 90 μM Al+5 μM Cd. By contrast, combined treatments decreased Cd concentration in plants, and the combinations of 10 μM Cd+Al alleviated Cd-induced growth and metabolism anomaly. ? (2012) Trans Tech Publications, Switzerland.