亚热带植物科学2016，Vol.45Issue(3)：207-211,5.DOI:10.3969/j.issn.1009-7791.2016.03.002
不同浓度镉胁迫对稗草生理特性的影响
Effects of Cadmium Stress on the Physiological Characteristics of Echinochloa crusgalli
摘要
Abstract
The physiological properties under different Cd2+ concentrations (0, 0.3, 0.6, 0.9, 1.5, 3.0 and 6.0 mg·kg-1) were investigated for the potential use of Echinochloa crusgalli as a candidate for phytoremediation of Cd-contaminated soils. In tillering stage, the photosynthesis and antioxidant enzyme activities were increased under 0.3 mg·kg-1 Cd2+ stress, and 0.6, 0.9 mg·kg-1 of Cd2+ stress inhibited photosynthesis, but promoted the antioxidant enzyme activities and MDA content. In tillering stage, antioxidant enzyme activities was improved under 3.0 mg·kg-1 Cd2+ stress, and MDA content increased under 6.0 mg·kg-1 Cd2+ stress. In heading stage, the photosynthesis was inhibited under 0.6 mg·kg-1 and 6.0 mg·kg-1 Cd2+ stress, and the antioxidant enzyme activities were also inhibited under high Cd stress. The proline content was increased under Cd stress, showing the higher resistance of Cd stress.关键词
稗草/镉胁迫/叶绿素/抗氧化Key words
barnyard grass/cadmium stress/chlorophyll/antioxidant分类
农业科技引用本文复制引用
陈维,金晨钟,吴晓峰,柏连阳,彭琼..不同浓度镉胁迫对稗草生理特性的影响[J].亚热带植物科学,2016,45(3):207-211,5.基金项目
湖南省农业科学院农田杂草安全高效防控创新团队项目(2014TD01) （2014TD01）
