文章基本信息

标题：Endurance assessment of Eichhornia crassipes (Mart.) Solms, in heavy metal contaminated site–A case study
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作者：Ganesh Thapa ; Debatosh Das ; Lokanadha Rao Gunupuru 等
期刊名称：Cogent Environmental Science
电子版ISSN：2331-1843
出版年度：2016
卷号：2
期号：1
页码：1215280
DOI：10.1080/23311843.2016.1215280
语种：English
出版社：Taylor and Francis Ltd
摘要：Abstract In this study, the ability to hyper accumulate heavy metals from contaminated site by water hyacinth (Eichhornia crassipes) was monitored. The heavy metal-contaminated habitat was validated by X-ray diffraction and energy dispersive X-ray elemental spectrometry analysis of the soil samples. Heavy metal contamination in soil and water; accumulation in foliar, root and bulb tissue samples were determined by atomic absorption spectroscopy and were monitored as a function of accumulation in different tissues. Significant differences were recorded in the bioaccumulation capability of heavy metals by different tissue. Discrete variation in protein profile of leaves and high expression of alcohol dehydrogenase (ADH), peroxidase (POX) and altered regulation of esterase (EST) in root tissue was observed in contaminated site grown Eichhornia. The high metal accumulation efficiency of water hyacinth due to the biomass production suggests this species as reliable organic biomarker for heavy metal contamination.
关键词：AAS; atomic absorption spectrophotometry ; ADH; alcohol dehydrogenase ; CAT; catalases ; CN; cyanide ; EDX; energy dispersive X-ray elemental spectrometry ; EST; esterase ; HM; heavy metal ; HPLC; Hindustan paper corporation limited