摘要
营养液培养试验显示,雷竹各器官中Zn含量随着水培溶液Zn含量水平的提高而呈梯度提高。土培盆栽试验结果,在锌含量为1 600 mg/kg条件下叶、茎、根最大富集量分别为1 201、2 051、1 713 mg/kg。通过观察雷竹叶绿素荧光发现,光能转化为化学能的效率变化不显著;ERT与[Y(Ⅱ)]降低,但是仍能保持较高的光合电子传递活性。通过观察超微结构的叶片细胞发现,在400μmol/L处理下叶绿体的严密结构被破坏,叶绿体歪曲变形,片层结构明显减少且模糊不清。
The results of hydroponics experiment indicated that zinc concentrations in each organ of Phyllostachys praecox increased with zinc addition. Zinc concentrations reached to the maximum of 1 201,2 051and 1 713 mg/kg in leaves,stems and roots at the zinc treatment of 1 600 mg/kg in pot experiment. For chlorophyll fluorescence,there are no significant changes about turning light energy into chemical energy efficiency. ERT and[Y（ Ⅱ ）] decreases, but it maintains a higher photosynthetic electron transport activity. After treating with 400 μmol/L Zn,it was found that chloroplast tight structure of leaf blade cells was destroyed, and chloroplast distorted deformation, lamellae decreased and blurred significantly.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2014年第6期14-20,共7页
Environmental Science & Technology
基金
国家自然科学基金资助(31300520)
浙江省自然科学基金资助(LY12C16004)
关键词
雷竹
重金属
植物修复
富集
Phyllostachys praecox
heavy metal
phytoremediation
accumulation
