水浮莲
Stratiotes公司
酒石酸
螯合作用
化学
甘氨酸
脯氨酸
核化学
氨基酸
金属
组氨酸
食品科学
无机化学
生物化学
生物
水生植物
有机化学
生态学
水生植物
柠檬酸
作者
Tomáš Veselý,Lukáš Trakal,M. Neuberg,Jiřina Száková,Ondřej Drábek,Václav Tejnecký,Miluše Balíková,Pavel Tlustoš
标识
DOI:10.2478/s11535-012-0099-z
摘要
Abstract The influence of different chelates applied in the soil primary on Al and secondary on Fe and Mn mobilization and their removal from solution was investigated. The work compared the efficiency of 10 mM tartaric acid and 3 mM EDTA in soil washing process and accumulation potential of Pistia stratiotes in rhizofiltration process. The plant response on the toxic element Al and other elements Fe and Mn was determined through the nitrogen and free amino acids content in plants. The efficiency of chelates decreased in order 10 mM tartaric acid > deionized water > 3 mM EDTA for all studied elements. P. stratiotes was able to remove up to 90% of elements during the 15 days period. Higher content of toxic element Al and potential toxic elements Fe and Mn were observed in the roots than in the leaves with the increased time. The trend of Al accumulation correlated with Fe accumulation (R2=0.89). Toxicity impact of high level of Al was observed by increased free amino acids (AA) level. Proline, histidine, glutamic acid and glycine were the most synthesised free AA in leaves. Total AA content in leaves was significantly higher under chelates addition compared to control.
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