Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes

Waste materials (tailings) generated from mining processes contain significant amounts of palladium, which are considered uneconomical to be extracted using conventional methods. Studies have demonstrated that Arabidopsis thaliana (Arabidopsis) can accumulate palladium as nanoparticles in the plant...

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Main Author:	Shamsul Harumain, Zakuan Azizi
Format:	Conference or Workshop Item
Language:	English
Published:	Kansas State University Manhattan, Kansas State, US 2015
Subjects:	Q Science (General) TD169 Environmental protection TD172 Environmental pollution TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/63180/ http://irep.iium.edu.my/63180/ http://irep.iium.edu.my/63180/1/63180_Towards%20developing%20methods%20to%20increase%20uptake.pdf

id	iium-63180
recordtype	eprints
spelling	iium-631802018-04-25T01:19:31Z http://irep.iium.edu.my/63180/ Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes Shamsul Harumain, Zakuan Azizi Q Science (General) TD169 Environmental protection TD172 Environmental pollution TP248.13 Biotechnology Waste materials (tailings) generated from mining processes contain significant amounts of palladium, which are considered uneconomical to be extracted using conventional methods. Studies have demonstrated that Arabidopsis thaliana (Arabidopsis) can accumulate palladium as nanoparticles in the plant tissues. In collaboration with the Green Chemistry Centre of Excellence at the University of York, we have recently demonstrated that this nanoparticle rich material can be used as a high-value catalyst, without the need to extract the metals from the plant biomass [1]. One of the properties of palladium is that it occurs naturally in the zero valent form. This represents a problem for phytoextraction as transition metals are usually taken up by plants as cations. To overcome this problem phytoextraction of gold, which is chemically similar to palladium, uses cyanide-based methods to promote gold solubility in soil. The use of cyanogenic compounds is not a long-term, environmentally sustainable method for palladium phytoextraction. Alternative methods may come from a greater understanding of the biological processes involved. Our studies have identified genes that are strongly regulated by gold, including a discreet suite of divalent metal cations [2]. We are now extrapolating these investigations to palladium to investigate solubilisation, uptake and nanoparticle formation of palladium in plants. [1] Parker et al. (2014). PLoS One 9:e87192 [2] Taylor et al (2014). PLoS One 9:e93793 Kansas State University Manhattan, Kansas State, US 2015-09-03 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/63180/1/63180_Towards%20developing%20methods%20to%20increase%20uptake.pdf Shamsul Harumain, Zakuan Azizi (2015) Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes. In: 12th International Phytotechnologies Conference 2015, 27th-30th Sept. 2015, Manhattan, Kansas. https://cpb-us-east-1-juc1ugur1qwqqqo4.stackpathdns.com/conferences.k-state.edu/dist/4/26/files/2015/09/80333-IPC-Abstract_Final-1hbvawr.pdf
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	Q Science (General) TD169 Environmental protection TD172 Environmental pollution TP248.13 Biotechnology
spellingShingle	Q Science (General) TD169 Environmental protection TD172 Environmental pollution TP248.13 Biotechnology Shamsul Harumain, Zakuan Azizi Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes
description	Waste materials (tailings) generated from mining processes contain significant amounts of palladium, which are considered uneconomical to be extracted using conventional methods. Studies have demonstrated that Arabidopsis thaliana (Arabidopsis) can accumulate palladium as nanoparticles in the plant tissues. In collaboration with the Green Chemistry Centre of Excellence at the University of York, we have recently demonstrated that this nanoparticle rich material can be used as a high-value catalyst, without the need to extract the metals from the plant biomass [1]. One of the properties of palladium is that it occurs naturally in the zero valent form. This represents a problem for phytoextraction as transition metals are usually taken up by plants as cations. To overcome this problem phytoextraction of gold, which is chemically similar to palladium, uses cyanide-based methods to promote gold solubility in soil. The use of cyanogenic compounds is not a long-term, environmentally sustainable method for palladium phytoextraction. Alternative methods may come from a greater understanding of the biological processes involved. Our studies have identified genes that are strongly regulated by gold, including a discreet suite of divalent metal cations [2]. We are now extrapolating these investigations to palladium to investigate solubilisation, uptake and nanoparticle formation of palladium in plants. [1] Parker et al. (2014). PLoS One 9:e87192 [2] Taylor et al (2014). PLoS One 9:e93793
format	Conference or Workshop Item
author	Shamsul Harumain, Zakuan Azizi
author_facet	Shamsul Harumain, Zakuan Azizi
author_sort	Shamsul Harumain, Zakuan Azizi
title	Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes
title_short	Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes
title_full	Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes
title_fullStr	Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes
title_full_unstemmed	Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes
title_sort	towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes
publisher	Kansas State University Manhattan, Kansas State, US
publishDate	2015
url	http://irep.iium.edu.my/63180/ http://irep.iium.edu.my/63180/ http://irep.iium.edu.my/63180/1/63180_Towards%20developing%20methods%20to%20increase%20uptake.pdf
first_indexed	2023-09-18T21:29:38Z
last_indexed	2023-09-18T21:29:38Z
_version_	1777412423754448896

Towards developing methods to increase uptake of palladium by plants for revegetation and remediation of mine wastes

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