The potential of Mikania micrantha (Chinese creeper) to hyperaccumulate heavy metals in soil contaminated by electronic waste

Ho Man Leung; Patrick Y K YUE; Cho Wing SZE; Chi Kin Au; Kwai Chung Cheung; Ka Loi Chan; Kin Lam YUNG; Wai Chin Li

doi:10.1007/s11356-019-06771-x

The potential of Mikania micrantha (Chinese creeper) to hyperaccumulate heavy metals in soil contaminated by electronic waste

Ho Man Leung, Patrick Y K YUE, Cho Wing SZE, Chi Kin Au, Kwai Chung Cheung, Ka Loi Chan, Kin Lam YUNG^*, Wai Chin Li^*

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

8 Citations (Scopus)

Abstract

The objective of this study is to investigate the contributions of Mikania micrantha (chinese creeper) to remediate heavy metal pollutants present in an e-waste-contaminated soil. Different proportions of e-waste soil (0%, 25%, 50%, 75%, and 100% w/w) planted with Cynodon dactylon together with the test species were prepared for testing relative seed germination (RSG), relative root growth (RRG), and germination index (GI) tests. A significant higher value of GI (77.8%) was found in M. micrantha than that of the other species when planting in 100% e-waste-contaminated soil. A significant correlation (< 0.05) was found between heavy metal concentration and germination assays in M. micrantha. A significant decrease in heavy metal concentration of the polluted soil after the experiment indicated that biomolecule development studies to determine the aggregate benefit of M. micrantha for phytoremediation remain to be studied in future.

Original language	English
Pages (from-to)	35275-35280
Number of pages	6
Journal	Environmental Science and Pollution Research
Volume	26
Issue number	34
Early online date	19 Nov 2019
DOIs	https://doi.org/10.1007/s11356-019-06771-x
Publication status	Published - Dec 2019

Scopus Subject Areas

Environmental Chemistry
Pollution
Health, Toxicology and Mutagenesis

User-Defined Keywords

Germination index
heavy metals
Mikania micrantha
phytoremediation
relative root growth
relative seed germination

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s11356-019-06771-x

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title = "The potential of Mikania micrantha (Chinese creeper) to hyperaccumulate heavy metals in soil contaminated by electronic waste",

abstract = "The objective of this study is to investigate the contributions of Mikania micrantha (chinese creeper) to remediate heavy metal pollutants present in an e-waste-contaminated soil. Different proportions of e-waste soil (0%, 25%, 50%, 75%, and 100% w/w) planted with Cynodon dactylon together with the test species were prepared for testing relative seed germination (RSG), relative root growth (RRG), and germination index (GI) tests. A significant higher value of GI (77.8%) was found in M. micrantha than that of the other species when planting in 100% e-waste-contaminated soil. A significant correlation (< 0.05) was found between heavy metal concentration and germination assays in M. micrantha. A significant decrease in heavy metal concentration of the polluted soil after the experiment indicated that biomolecule development studies to determine the aggregate benefit of M. micrantha for phytoremediation remain to be studied in future.",

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author = "Leung, {Ho Man} and YUE, {Patrick Y K} and SZE, {Cho Wing} and Au, {Chi Kin} and Cheung, {Kwai Chung} and Chan, {Ka Loi} and YUNG, {Kin Lam} and Li, {Wai Chin}",

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doi = "10.1007/s11356-019-06771-x",

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AU - Leung, Ho Man

AU - YUE, Patrick Y K

AU - SZE, Cho Wing

AU - Au, Chi Kin

AU - Cheung, Kwai Chung

AU - Chan, Ka Loi

AU - YUNG, Kin Lam

AU - Li, Wai Chin

PY - 2019/12

Y1 - 2019/12

N2 - The objective of this study is to investigate the contributions of Mikania micrantha (chinese creeper) to remediate heavy metal pollutants present in an e-waste-contaminated soil. Different proportions of e-waste soil (0%, 25%, 50%, 75%, and 100% w/w) planted with Cynodon dactylon together with the test species were prepared for testing relative seed germination (RSG), relative root growth (RRG), and germination index (GI) tests. A significant higher value of GI (77.8%) was found in M. micrantha than that of the other species when planting in 100% e-waste-contaminated soil. A significant correlation (< 0.05) was found between heavy metal concentration and germination assays in M. micrantha. A significant decrease in heavy metal concentration of the polluted soil after the experiment indicated that biomolecule development studies to determine the aggregate benefit of M. micrantha for phytoremediation remain to be studied in future.

AB - The objective of this study is to investigate the contributions of Mikania micrantha (chinese creeper) to remediate heavy metal pollutants present in an e-waste-contaminated soil. Different proportions of e-waste soil (0%, 25%, 50%, 75%, and 100% w/w) planted with Cynodon dactylon together with the test species were prepared for testing relative seed germination (RSG), relative root growth (RRG), and germination index (GI) tests. A significant higher value of GI (77.8%) was found in M. micrantha than that of the other species when planting in 100% e-waste-contaminated soil. A significant correlation (< 0.05) was found between heavy metal concentration and germination assays in M. micrantha. A significant decrease in heavy metal concentration of the polluted soil after the experiment indicated that biomolecule development studies to determine the aggregate benefit of M. micrantha for phytoremediation remain to be studied in future.

KW - Germination index

KW - heavy metals

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KW - relative seed germination

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The potential of Mikania micrantha (Chinese creeper) to hyperaccumulate heavy metals in soil contaminated by electronic waste

Abstract

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