文章基本信息

标题：Copper (Cu) tolerance and accumulation potential in four native plant species: a comparative study for effective phytoextraction technique
本地全文：下载
作者：Hira Amin ; Basir Ahmed Arain ; Taj Muhammad Jahangir 等
期刊名称：Geology, Ecology, and Landscapes
电子版ISSN：2474-9508
出版年度：2021
卷号：5
期号：1
页码：53-64
DOI：10.1080/24749508.2019.1700671
语种：English
出版社：Taylor & Francis Group
摘要：ABSTRACTPhytoextraction involved the use of plants in rapid, efficient, less expensive, and environment friendly removal of toxic metals from contaminated soil. For this study, a pot experiment was conducted and plant species:Abelmoschus esculentus, Avena sativa, Guizotia abyssinica,andGlycine maxwere subjected to six copper concentrations i.e., 25, 50, 100, 150, 200, and 300 mg Cu kg−1for the investigation of Cu phytotoxicity, tolerance, and accumulation for 12 weeks under green house. Soil without spike were taken as control. After 12 weeks of experiment, Cu toxicity on growth and chlorophyll contents were determined. Among four plant species, onlyA. sativa, C. tetragonolobaandS. indicumseeds were germinated at 300 mg Cu kg−1. The growth parameters were significantly (p < 0.05) reduced under high Cu stress (from 25 to 100 mg Cu kg−1) inG. abyssinicaandG. max. The chlorophyll content found maximum at 25 mg Cu kg−1in all plant species as compared to control. Significantly, high Cu accumulation was found in roots and shoots ofA. sativa. The highest values of bioconcentration factor, bioaccumulation coefficient, translocation factor (all greater than 1), phytoremediation ratios, and accumulation with high tolerance suggested thatA. sativawas a suitable plant for effective Cu phytoextraction.
关键词：KEYWORDSSoil contaminationphytotoxicitybioconcentrationbioaccumulationphytoremediation ratio