Effects of selenium uptake on plant proteins for phytoremediation

Vinod, Divya

Effects of selenium uptake on plant proteins for phytoremediation

Vinod, Divya

Permalink

Publication Type:: Thesis
Issue Date:: 2021

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download contents and abstractAdobe PDF (476.96 kB)

Adobe PDF

Download thesisAdobe PDF (2.95 MB)

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Vinod, Divya
dc.date.accessioned	2022-04-13T00:23:39Z
dc.date.available	2022-04-13T00:23:39Z
dc.date.issued	2021
dc.identifier.uri	http://hdl.handle.net/10453/156165
dc.description	University of Technology Sydney. Faculty of Science.	en_US.UTF-8
dc.description.abstract	Coal is utilised for electricity generation by power plants around the world. One of the by-products of coal used for electricity production is coal ash slurry. Coal ash slurry dumped in unlined ponds near power plants can seep into surrounding soils and eventually into waterways. The resulting impact of the coal ash slurry seepage is an elevated level of toxic compounds including selenium (Se) which was first identified as a contaminant in the 1970’s. When selenium is in contact with water, selenium becomes bioavailable as selenite and selenate, increasing its toxicity. Given there are no studies to date demonstrating the phytoremediation of Se from soil in Australia, this research determined the suitability of selected plants for Se phytoremediation where the efficacy of currently used species is constrained by slow growth rates and low biomass production. The suitability of Brassica rapa, Helianthus annuus and Neptunia amplexicaulis for phytoremediation were determined by determining sublethal selenite and selenate concentrations, measuring effects of sublethal concentrations on reactive oxygen species enzyme activity and comparing patterns of Se uptake from a whole plant and proteomic scale. The research highlighted the potential of using Neptunia amplexicualis and Helianthus annuus for Se phytoremediation.	en_US.UTF-8
dc.format	Thesis (PhD)
dc.language.iso	en_US	en_US.UTF-8
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/156165/2/02whole.pdf
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.rights	au.edu.uts.lib/ppc
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Effects of selenium uptake on plant proteins for phytoremediation	en_US.UTF-8
dc.type	Thesis
utslib.copyright.status	open_access	*

Abstract:

Coal is utilised for electricity generation by power plants around the world. One of the by-products of coal used for electricity production is coal ash slurry. Coal ash slurry dumped in unlined ponds near power plants can seep into surrounding soils and eventually into waterways. The resulting impact of the coal ash slurry seepage is an elevated level of toxic compounds including selenium (Se) which was first identified as a contaminant in the 1970’s. When selenium is in contact with water, selenium becomes bioavailable as selenite and selenate, increasing its toxicity. Given there are no studies to date demonstrating the phytoremediation of Se from soil in Australia, this research determined the suitability of selected plants for Se phytoremediation where the efficacy of currently used species is constrained by slow growth rates and low biomass production. The suitability of Brassica rapa, Helianthus annuus and Neptunia amplexicaulis for phytoremediation were determined by determining sublethal selenite and selenate concentrations, measuring effects of sublethal concentrations on reactive oxygen species enzyme activity and comparing patterns of Se uptake from a whole plant and proteomic scale. The research highlighted the potential of using Neptunia amplexicualis and Helianthus annuus for Se phytoremediation.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/156165